20123114312 has 32 divisors (see below), whose sum is σ = 43605475200. Its totient is φ = 8527288704.

The previous prime is 20123114293. The next prime is 20123114357. The reversal of 20123114312 is 21341132102.

It is a super-2 number, since 2×20123114312² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2013788 + ... + 2023755.

It is an arithmetic number, because the mean of its divisors is an integer number (1362671100).

Almost surely, 2^20123114312 is an apocalyptic number.

It is an amenable number.

20123114312 is an abundant number, since it is smaller than the sum of its proper divisors (23482360888).

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

20123114312 is a wasteful number, since it uses less digits than its factorization.

20123114312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037645 (or 4037641 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20123114312 its reverse (21341132102), we get a palindrome (41464246414).

The spelling of 20123114312 in words is "twenty billion, one hundred twenty-three million, one hundred fourteen thousand, three hundred twelve".