31012204534536 has 16 divisors (see below), whose sum is σ = 77530511336400. Its totient is φ = 10337401511504.

The previous prime is 31012204534513. The next prime is 31012204534543. The reversal of 31012204534536 is 63543540221013.

It is a super-5 number, since 5×31012204534536⁵ (a number of 69 digits) contains 55555 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31012204534494 and 31012204534503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646087594446 + ... + 646087594493.

It is an arithmetic number, because the mean of its divisors is an integer number (4845656958525).

Almost surely, 2^{31012204534536} is an apocalyptic number.

It is an amenable number.

31012204534536 is an abundant number, since it is smaller than the sum of its proper divisors (46518306801864).

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

31012204534536 is a wasteful number, since it uses less digits than its factorization.

31012204534536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292175188948 (or 1292175188944 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

Adding to 31012204534536 its reverse (63543540221013), we get a palindrome (94555744755549).

The spelling of 31012204534536 in words is "thirty-one trillion, twelve billion, two hundred four million, five hundred thirty-four thousand, five hundred thirty-six".