31150454045142 has 16 divisors (see below), whose sum is σ = 62301375631872. Its totient is φ = 10383406758120.

The previous prime is 31150454045119. The next prime is 31150454045143. The reversal of 31150454045142 is 24154045405113.

It is a self number, because there is not a number n which added to its sum of digits gives 31150454045142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31150454045143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18611778 + ... + 20216309.

It is an arithmetic number, because the mean of its divisors is an integer number (3893835976992).

Almost surely, 2^{31150454045142} is an apocalyptic number.

31150454045142 is an abundant number, since it is smaller than the sum of its proper divisors (31150921586730).

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

31150454045142 is a wasteful number, since it uses less digits than its factorization.

31150454045142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38961803.

The product of its (nonzero) digits is 192000, while the sum is 39.

The spelling of 31150454045142 in words is "thirty-one trillion, one hundred fifty billion, four hundred fifty-four million, forty-five thousand, one hundred forty-two".