20023040234312 has 64 divisors (see below), whose sum is σ = 41230211001840. Its totient is φ = 9077170176000.

The previous prime is 20023040234243. The next prime is 20023040234333. The reversal of 20023040234312 is 21343204032002.

It can be written as a sum of positive squares in 8 ways, for example, as 19994544768676 + 28495465636 = 4471526^2 + 168806^2 .

It is a super-2 number, since 2×20023040234312² (a number of 27 digits) contains 22 as substring.

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, 19190489 + ... + 20206952.

Almost surely, 2^{20023040234312} is an apocalyptic number.

It is an amenable number.

20023040234312 is an abundant number, since it is smaller than the sum of its proper divisors (21207170767528).

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

20023040234312 is a wasteful number, since it uses less digits than its factorization.

20023040234312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39397602 (or 39397598 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20023040234312 its reverse (21343204032002), we get a palindrome (41366244266314).

The spelling of 20023040234312 in words is "twenty trillion, twenty-three billion, forty million, two hundred thirty-four thousand, three hundred twelve".