31151413140132 has 48 divisors (see below), whose sum is σ = 73565057260800. Its totient is φ = 10258323995808.

The previous prime is 31151413140121. The next prime is 31151413140137. The reversal of 31151413140132 is 23104131415113.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31151413140132.

It is not an unprimeable number, because it can be changed into a prime (31151413140137) 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, 27430063 + ... + 28543145.

It is an arithmetic number, because the mean of its divisors is an integer number (1532605359600).

Almost surely, 2^{31151413140132} is an apocalyptic number.

It is an amenable number.

31151413140132 is an abundant number, since it is smaller than the sum of its proper divisors (42413644120668).

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

31151413140132 is a wasteful number, since it uses less digits than its factorization.

31151413140132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141272 (or 1141270 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 31151413140132 its reverse (23104131415113), we get a palindrome (54255544555245).

The spelling of 31151413140132 in words is "thirty-one trillion, one hundred fifty-one billion, four hundred thirteen million, one hundred forty thousand, one hundred thirty-two".