20123232001231 has 8 divisors (see below), whose sum is σ = 21182403726720. Its totient is φ = 19064065700952.

The previous prime is 20123232001207. The next prime is 20123232001237. The reversal of 20123232001231 is 13210023232102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20123232001231 - 2⁵ = 20123232001199 is a prime.

It is a super-2 number, since 2×20123232001231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123232001237) 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, 7864926 + ... + 10104628.

It is an arithmetic number, because the mean of its divisors is an integer number (2647800465840).

Almost surely, 2^{20123232001231} is an apocalyptic number.

20123232001231 is a deficient number, since it is larger than the sum of its proper divisors (1059171725489).

20123232001231 is a wasteful number, since it uses less digits than its factorization.

20123232001231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712605.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20123232001231 its reverse (13210023232102), we get a palindrome (33333255233333).

The spelling of 20123232001231 in words is "twenty trillion, one hundred twenty-three billion, two hundred thirty-two million, one thousand, two hundred thirty-one".