1231312033002 has 32 divisors (see below), whose sum is σ = 2464144804800. Its totient is φ = 410183970560.

The previous prime is 1231312032959. The next prime is 1231312033051. The reversal of 1231312033002 is 2003302131321.

It is a super-2 number, since 2×1231312033002² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1231312033002.

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, 119180977 + ... + 119191307.

It is an arithmetic number, because the mean of its divisors is an integer number (77004525150).

Almost surely, 2^{1231312033002} is an apocalyptic number.

1231312033002 is an abundant number, since it is smaller than the sum of its proper divisors (1232832771798).

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

1231312033002 is a wasteful number, since it uses less digits than its factorization.

1231312033002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20678.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1231312033002 its reverse (2003302131321), we get a palindrome (3234614164323).

The spelling of 1231312033002 in words is "one trillion, two hundred thirty-one billion, three hundred twelve million, thirty-three thousand, two".