1021253024 has 48 divisors (see below), whose sum is σ = 2203207776. Its totient is φ = 462124800.

The previous prime is 1021252997. The next prime is 1021253029. The reversal of 1021253024 is 4203521201.

It is a junction number, because it is equal to n+sod(n) for n = 1021252987 and 1021253005.

It is not an unprimeable number, because it can be changed into a prime (1021253029) 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, 73514 + ... + 86294.

It is an arithmetic number, because the mean of its divisors is an integer number (45900162).

Almost surely, 2^1021253024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021253024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1101603888).

1021253024 is an abundant number, since it is smaller than the sum of its proper divisors (1181954752).

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

1021253024 is a wasteful number, since it uses less digits than its factorization.

1021253024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13029 (or 13021 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1021253024 is about 31957.0496760887. The cubic root of 1021253024 is about 1007.0347377541.

Adding to 1021253024 its reverse (4203521201), we get a palindrome (5224774225).

It can be divided in two parts, 10212 and 53024, that added together give a palindrome (63236).

The spelling of 1021253024 in words is "one billion, twenty-one million, two hundred fifty-three thousand, twenty-four".