20122631870 has 32 divisors (see below), whose sum is σ = 39531663360. Its totient is φ = 7313963040.

The previous prime is 20122631839. The next prime is 20122631899. The reversal of 20122631870 is 7813622102.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205439 + ... + 287141.

It is an arithmetic number, because the mean of its divisors is an integer number (1235364480).

Almost surely, 2^20122631870 is an apocalyptic number.

20122631870 is a deficient number, since it is larger than the sum of its proper divisors (19409031490).

20122631870 is a wasteful number, since it uses less digits than its factorization.

20122631870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83960.

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 20122631870 in words is "twenty billion, one hundred twenty-two million, six hundred thirty-one thousand, eight hundred seventy".