20100531422 has 24 divisors (see below), whose sum is σ = 31014827424. Its totient is φ = 9770081472.

The previous prime is 20100531421. The next prime is 20100531431. The reversal of 20100531422 is 22413500102.

It is a junction number, because it is equal to n+sod(n) for n = 20100531394 and 20100531403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100531421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4068938 + ... + 4073874.

It is an arithmetic number, because the mean of its divisors is an integer number (1292284476).

Almost surely, 2^20100531422 is an apocalyptic number.

20100531422 is a deficient number, since it is larger than the sum of its proper divisors (10914296002).

20100531422 is a wasteful number, since it uses less digits than its factorization.

20100531422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500 (or 6463 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The spelling of 20100531422 in words is "twenty billion, one hundred million, five hundred thirty-one thousand, four hundred twenty-two".