1030121000 has 32 divisors (see below), whose sum is σ = 2410485480. Its totient is φ = 412048000.

The previous prime is 1030120999. The next prime is 1030121009. The reversal of 1030121000 is 1210301.

1030121000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 160224964 + 869896036 = 12658^2 + 29494^2 .

It is a super-2 number, since 2×1030121000² = 2122298549282000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is not an unprimeable number, because it can be changed into a prime (1030121009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514061 + ... + 516060.

Almost surely, 2^1030121000 is an apocalyptic number.

1030121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030121000 is an abundant number, since it is smaller than the sum of its proper divisors (1380364480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1030121000 is a wasteful number, since it uses less digits than its factorization.

1030121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030142 (or 1030128 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 1030121000 is about 32095.4981266844. The cubic root of 1030121000 is about 1009.9411788114.

Adding to 1030121000 its reverse (1210301), we get a palindrome (1031331301).

The spelling of 1030121000 in words is "one billion, thirty million, one hundred twenty-one thousand".