31110110044402 has 4 divisors (see below), whose sum is σ = 46665165066606. Its totient is φ = 15555055022200.

The previous prime is 31110110044379. The next prime is 31110110044423. The reversal of 31110110044402 is 20444001101113.

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., 27371846339721 + 3738263704681 = 5231811^2 + 1933459^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7777527511099 + ... + 7777527511102.

Almost surely, 2^{31110110044402} is an apocalyptic number.

31110110044402 is a deficient number, since it is larger than the sum of its proper divisors (15555055022204).

31110110044402 is a wasteful number, since it uses less digits than its factorization.

31110110044402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15555055022203.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 31110110044402 its reverse (20444001101113), we get a palindrome (51554111145515).

The spelling of 31110110044402 in words is "thirty-one trillion, one hundred ten billion, one hundred ten million, forty-four thousand, four hundred two".