20123232102 has 12 divisors (see below), whose sum is σ = 43600336260. Its totient is φ = 6707744028.

The previous prime is 20123232083. The next prime is 20123232113.

20123232102 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1117957339 = 20123232102 / (2 + 0 + 1 + 2 + 3 + 2 + 3 + 2 + 1 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 558978652 + ... + 558978687.

It is an arithmetic number, because the mean of its divisors is an integer number (3633361355).

Almost surely, 2^20123232102 is an apocalyptic number.

20123232102 is an abundant number, since it is smaller than the sum of its proper divisors (23477104158).

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

20123232102 is a wasteful number, since it uses less digits than its factorization.

20123232102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117957347 (or 1117957344 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The spelling of 20123232102 in words is "twenty billion, one hundred twenty-three million, two hundred thirty-two thousand, one hundred two".