20123503210 has 16 divisors (see below), whose sum is σ = 36231554016. Its totient is φ = 8047346128.

The previous prime is 20123503181. The next prime is 20123503217. The reversal of 20123503210 is 1230532102.

It is not an unprimeable number, because it can be changed into a prime (20123503217) 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, 215452 + ... + 294391.

It is an arithmetic number, because the mean of its divisors is an integer number (2264472126).

Almost surely, 2^20123503210 is an apocalyptic number.

20123503210 is a deficient number, since it is larger than the sum of its proper divisors (16108050806).

20123503210 is a wasteful number, since it uses less digits than its factorization.

20123503210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513797.

The product of its (nonzero) digits is 360, while the sum is 19.

The spelling of 20123503210 in words is "twenty billion, one hundred twenty-three million, five hundred three thousand, two hundred ten".