31311220210093 has 8 divisors (see below), whose sum is σ = 31335788107008. Its totient is φ = 31286653140624.

The previous prime is 31311220210019. The next prime is 31311220210117. The reversal of 31311220210093 is 39001202211313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31311220210093 - 2¹³ = 31311220201901 is a prime.

It is a super-2 number, since 2×31311220210093² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311220217093) 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, 91329471 + ... + 91671667.

It is an arithmetic number, because the mean of its divisors is an integer number (3916973513376).

Almost surely, 2^{31311220210093} is an apocalyptic number.

It is an amenable number.

31311220210093 is a deficient number, since it is larger than the sum of its proper divisors (24567896915).

31311220210093 is a wasteful number, since it uses less digits than its factorization.

31311220210093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413723.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 31311220210093 in words is "thirty-one trillion, three hundred eleven billion, two hundred twenty million, two hundred ten thousand, ninety-three".