31612304612162 has 4 divisors (see below), whose sum is σ = 47418456918246. Its totient is φ = 15806152306080.

The previous prime is 31612304612149. The next prime is 31612304612263. The reversal of 31612304612162 is 26121640321613.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19951042622281 + 11661261989881 = 4466659^2 + 3414859^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7903076153039 + ... + 7903076153042.

Almost surely, 2^{31612304612162} is an apocalyptic number.

31612304612162 is a deficient number, since it is larger than the sum of its proper divisors (15806152306084).

31612304612162 is a wasteful number, since it uses less digits than its factorization.

31612304612162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15806152306083.

The product of its (nonzero) digits is 62208, while the sum is 38.

Adding to 31612304612162 its reverse (26121640321613), we get a palindrome (57733944933775).

The spelling of 31612304612162 in words is "thirty-one trillion, six hundred twelve billion, three hundred four million, six hundred twelve thousand, one hundred sixty-two".