31313034197 has 8 divisors (see below), whose sum is σ = 31417305600. Its totient is φ = 31208877504.

The previous prime is 31313034191. The next prime is 31313034283. The reversal of 31313034197 is 79143031313.

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 31313034197 - 2¹⁰ = 31313033173 is a prime.

It is a super-2 number, since 2×31313034197² (a number of 22 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 (31313034191) 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, 536588 + ... + 592074.

It is an arithmetic number, because the mean of its divisors is an integer number (3927163200).

Almost surely, 2^31313034197 is an apocalyptic number.

It is an amenable number.

31313034197 is a deficient number, since it is larger than the sum of its proper divisors (104271403).

31313034197 is a wasteful number, since it uses less digits than its factorization.

31313034197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57355.

The product of its (nonzero) digits is 20412, while the sum is 35.

The spelling of 31313034197 in words is "thirty-one billion, three hundred thirteen million, thirty-four thousand, one hundred ninety-seven".