20123023032102 has 16 divisors (see below), whose sum is σ = 41995874154240. Its totient is φ = 6416036329032.

The previous prime is 20123023032083. The next prime is 20123023032113. The reversal of 20123023032102 is 20123032032102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72909503602 + ... + 72909503877.

It is an arithmetic number, because the mean of its divisors is an integer number (2624742134640).

Almost surely, 2^{20123023032102} is an apocalyptic number.

20123023032102 is an abundant number, since it is smaller than the sum of its proper divisors (21872851122138).

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

20123023032102 is a wasteful number, since it uses less digits than its factorization.

20123023032102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145819007507.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20123023032102 its reverse (20123032032102), we get a palindrome (40246055064204).

Subtracting 20123023032102 from its reverse (20123032032102), we obtain a square (9000000 = 3000²).

The spelling of 20123023032102 in words is "twenty trillion, one hundred twenty-three billion, twenty-three million, thirty-two thousand, one hundred two".