31423412400 has 60 divisors (see below), whose sum is σ = 100659668232. Its totient is φ = 8379576320.

The previous prime is 31423412399. The next prime is 31423412401. The reversal of 31423412400 is 421432413.

It is an interprime number because it is at equal distance from previous prime (31423412399) and next prime (31423412401).

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (31423412401) 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, 13091889 + ... + 13094288.

Almost surely, 2^31423412400 is an apocalyptic number.

31423412400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31423412400 is an abundant number, since it is smaller than the sum of its proper divisors (69236255832).

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

31423412400 is a wasteful number, since it uses less digits than its factorization.

31423412400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26186198 (or 26186187 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31423412400 its reverse (421432413), we get a palindrome (31844844813).

The spelling of 31423412400 in words is "thirty-one billion, four hundred twenty-three million, four hundred twelve thousand, four hundred".