31331341140423 has 4 divisors (see below), whose sum is σ = 41775121520568. Its totient is φ = 20887560760280.

The previous prime is 31331341140397. The next prime is 31331341140427. The reversal of 31331341140423 is 32404114313313.

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

It is a cyclic number.

It is not a de Polignac number, because 31331341140423 - 2²⁰ = 31331340091847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31331341140427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5221890190068 + ... + 5221890190073.

It is an arithmetic number, because the mean of its divisors is an integer number (10443780380142).

Almost surely, 2^{31331341140423} is an apocalyptic number.

31331341140423 is a deficient number, since it is larger than the sum of its proper divisors (10443780380145).

31331341140423 is a wasteful number, since it uses less digits than its factorization.

31331341140423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10443780380144.

The product of its (nonzero) digits is 31104, while the sum is 33.

Adding to 31331341140423 its reverse (32404114313313), we get a palindrome (63735455453736).

The spelling of 31331341140423 in words is "thirty-one trillion, three hundred thirty-one billion, three hundred forty-one million, one hundred forty thousand, four hundred twenty-three".