31331341140421 has 32 divisors (see below), whose sum is σ = 37973270200320. Its totient is φ = 25252086960000.

The previous prime is 31331341140397. The next prime is 31331341140427. The reversal of 31331341140421 is 12404114313313.

It is a cyclic number.

It is not a de Polignac number, because 31331341140421 - 2⁵ = 31331341140389 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 31 ways as a sum of consecutive naturals, for example, 111937596 + ... + 112217146.

It is an arithmetic number, because the mean of its divisors is an integer number (1186664693760).

Almost surely, 2^{31331341140421} is an apocalyptic number.

It is an amenable number.

31331341140421 is a deficient number, since it is larger than the sum of its proper divisors (6641929059899).

31331341140421 is a wasteful number, since it uses less digits than its factorization.

31331341140421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285865.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 31331341140421 its reverse (12404114313313), we get a palindrome (43735455453734).

The spelling of 31331341140421 in words is "thirty-one trillion, three hundred thirty-one billion, three hundred forty-one million, one hundred forty thousand, four hundred twenty-one".