31423101024 has 72 divisors (see below), whose sum is σ = 95952697848. Its totient is φ = 8978027520.

The previous prime is 31423101023. The next prime is 31423101071. The reversal of 31423101024 is 42010132413.

It is a super-2 number, since 2×31423101024² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31423101023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3335337 + ... + 3344744.

It is an arithmetic number, because the mean of its divisors is an integer number (1332676359).

Almost surely, 2^31423101024 is an apocalyptic number.

It is an amenable number.

31423101024 is an abundant number, since it is smaller than the sum of its proper divisors (64529596824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31423101024 is a wasteful number, since it uses less digits than its factorization.

31423101024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6680108 (or 6680093 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31423101024 its reverse (42010132413), we get a palindrome (73433233437).

The spelling of 31423101024 in words is "thirty-one billion, four hundred twenty-three million, one hundred one thousand, twenty-four".