13540031012 has 12 divisors (see below), whose sum is σ = 23912440860. Its totient is φ = 6707905056.

The previous prime is 13540030997. The next prime is 13540031027. The reversal of 13540031012 is 21013004531.

It is an interprime number because it is at equal distance from previous prime (13540030997) and next prime (13540031027).

It can be written as a sum of positive squares in 2 ways, for example, as 9219072256 + 4320958756 = 96016^2 + 65734^2 .

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, 15527123 + ... + 15527994.

It is an arithmetic number, because the mean of its divisors is an integer number (1992703405).

Almost surely, 2^13540031012 is an apocalyptic number.

It is an amenable number.

13540031012 is a deficient number, since it is larger than the sum of its proper divisors (10372409848).

13540031012 is a wasteful number, since it uses less digits than its factorization.

13540031012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31055230 (or 31055228 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 13540031012 its reverse (21013004531), we get a palindrome (34553035543).

The spelling of 13540031012 in words is "thirteen billion, five hundred forty million, thirty-one thousand, twelve".