1011313212 has 48 divisors (see below), whose sum is σ = 2904287232. Its totient is φ = 266719680.

The previous prime is 1011313211. The next prime is 1011313223. The reversal of 1011313212 is 2123131101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1011313191 and 1011313200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011313211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461964 + ... + 464147.

It is an arithmetic number, because the mean of its divisors is an integer number (60505984).

Almost surely, 2^1011313212 is an apocalyptic number.

1011313212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011313212 is an abundant number, since it is smaller than the sum of its proper divisors (1892974020).

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

1011313212 is a wasteful number, since it uses less digits than its factorization.

1011313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926138 (or 926136 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1011313212 is about 31801.1511112412. The cubic root of 1011313212 is about 1003.7569384046.

Adding to 1011313212 its reverse (2123131101), we get a palindrome (3134444313).

The spelling of 1011313212 in words is "one billion, eleven million, three hundred thirteen thousand, two hundred twelve".