20122631871 has 16 divisors (see below), whose sum is σ = 27333393408. Its totient is φ = 13164501600.

The previous prime is 20122631839. The next prime is 20122631899. The reversal of 20122631871 is 17813622102.

It is not a de Polignac number, because 20122631871 - 2⁵ = 20122631839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122631821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48691 + ... + 206436.

It is an arithmetic number, because the mean of its divisors is an integer number (1708337088).

Almost surely, 2^20122631871 is an apocalyptic number.

20122631871 is a deficient number, since it is larger than the sum of its proper divisors (7210761537).

20122631871 is a wasteful number, since it uses less digits than its factorization.

20122631871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255622.

The product of its (nonzero) digits is 8064, while the sum is 33.

The spelling of 20122631871 in words is "twenty billion, one hundred twenty-two million, six hundred thirty-one thousand, eight hundred seventy-one".