31214016436 has 12 divisors (see below), whose sum is σ = 56386610560. Its totient is φ = 15103556280.

The previous prime is 31214016419. The next prime is 31214016443. The reversal of 31214016436 is 63461041213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 31214016398 and 31214016407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125862846 + ... + 125863093.

Almost surely, 2^31214016436 is an apocalyptic number.

It is an amenable number.

31214016436 is a deficient number, since it is larger than the sum of its proper divisors (25172594124).

31214016436 is a wasteful number, since it uses less digits than its factorization.

31214016436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251725974 (or 251725972 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 31214016436 its reverse (63461041213), we get a palindrome (94675057649).

The spelling of 31214016436 in words is "thirty-one billion, two hundred fourteen million, sixteen thousand, four hundred thirty-six".