20012100031002 has 16 divisors (see below), whose sum is σ = 40035503182752. Its totient is φ = 6668816156880.

The previous prime is 20012100030929. The next prime is 20012100031009. The reversal of 20012100031002 is 20013000121002.

It is a super-2 number, since 2×20012100031002² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20012100031009) 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, 470940348 + ... + 470982839.

It is an arithmetic number, because the mean of its divisors is an integer number (2502218948922).

Almost surely, 2^{20012100031002} is an apocalyptic number.

20012100031002 is an abundant number, since it is smaller than the sum of its proper divisors (20023403151750).

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

20012100031002 is a wasteful number, since it uses less digits than its factorization.

20012100031002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941926733.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20012100031002 its reverse (20013000121002), we get a palindrome (40025100152004).

The spelling of 20012100031002 in words is "twenty trillion, twelve billion, one hundred million, thirty-one thousand, two".