1023131232012 has 48 divisors (see below), whose sum is σ = 2410624842752. Its totient is φ = 337727620800.

The previous prime is 1023131231953. The next prime is 1023131232031. The reversal of 1023131232012 is 2102321313201.

It is a self number, because there is not a number n which added to its sum of digits gives 1023131232012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402364 + ... + 1485987.

Almost surely, 2^{1023131232012} is an apocalyptic number.

1023131232012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1023131232012 is an abundant number, since it is smaller than the sum of its proper divisors (1387493610740).

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

1023131232012 is a wasteful number, since it uses less digits than its factorization.

1023131232012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888798 (or 1888796 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1023131232012 its reverse (2102321313201), we get a palindrome (3125452545213).

The spelling of 1023131232012 in words is "one trillion, twenty-three billion, one hundred thirty-one million, two hundred thirty-two thousand, twelve".