20423122310 has 16 divisors (see below), whose sum is σ = 37279390752. Its totient is φ = 8054188800.

The previous prime is 20423122303. The next prime is 20423122331. The reversal of 20423122310 is 1322132402.

It is a super-2 number, since 2×20423122310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14381771 + ... + 14383190.

It is an arithmetic number, because the mean of its divisors is an integer number (2329961922).

Almost surely, 2^20423122310 is an apocalyptic number.

20423122310 is a deficient number, since it is larger than the sum of its proper divisors (16856268442).

20423122310 is a wasteful number, since it uses less digits than its factorization.

20423122310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28765039.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20423122310 its reverse (1322132402), we get a palindrome (21745254712).

The spelling of 20423122310 in words is "twenty billion, four hundred twenty-three million, one hundred twenty-two thousand, three hundred ten".