31418370140 has 48 divisors (see below), whose sum is σ = 70701416352. Its totient is φ = 11685574656.

The previous prime is 31418370119. The next prime is 31418370149. The reversal of 31418370140 is 4107381413.

It is a super-2 number, since 2×31418370140² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31418370097 and 31418370106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31418370149) 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, 528449 + ... + 584888.

It is an arithmetic number, because the mean of its divisors is an integer number (1472946174).

Almost surely, 2^31418370140 is an apocalyptic number.

It is an amenable number.

31418370140 is an abundant number, since it is smaller than the sum of its proper divisors (39283046212).

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

31418370140 is a wasteful number, since it uses less digits than its factorization.

31418370140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113446 (or 1113444 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 31418370140 in words is "thirty-one billion, four hundred eighteen million, three hundred seventy thousand, one hundred forty".