1023113512 has 16 divisors (see below), whose sum is σ = 1918854900. Its totient is φ = 511418880.

The previous prime is 1023113489. The next prime is 1023113543. The reversal of 1023113512 is 2153113201.

It can be written as a sum of positive squares in 2 ways, for example, as 993888676 + 29224836 = 31526^2 + 5406^2 .

It is a super-2 number, since 2×1023113512² = 2093522516873948288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1023113512.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18712 + ... + 48952.

Almost surely, 2^1023113512 is an apocalyptic number.

It is an amenable number.

1023113512 is a deficient number, since it is larger than the sum of its proper divisors (895741388).

1023113512 is a wasteful number, since it uses less digits than its factorization.

1023113512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34476 (or 34472 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1023113512 is about 31986.1456258800. The cubic root of 1023113512 is about 1007.6458952929.

Adding to 1023113512 its reverse (2153113201), we get a palindrome (3176226713).

The spelling of 1023113512 in words is "one billion, twenty-three million, one hundred thirteen thousand, five hundred twelve".