31272374611 has 4 divisors (see below), whose sum is σ = 31273760952. Its totient is φ = 31270988272.

The previous prime is 31272374593. The next prime is 31272374621. The reversal of 31272374611 is 11647327213.

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 31272374611 - 2⁵ = 31272374579 is a prime.

It is a super-2 number, since 2×31272374611² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31272374621) 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, 658765 + ... + 704638.

It is an arithmetic number, because the mean of its divisors is an integer number (7818440238).

Almost surely, 2^31272374611 is an apocalyptic number.

31272374611 is a deficient number, since it is larger than the sum of its proper divisors (1386341).

31272374611 is a wasteful number, since it uses less digits than its factorization.

31272374611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386340.

The product of its digits is 42336, while the sum is 37.

The spelling of 31272374611 in words is "thirty-one billion, two hundred seventy-two million, three hundred seventy-four thousand, six hundred eleven".