31112030310011 has 4 divisors (see below), whose sum is σ = 35556606068592. Its totient is φ = 26667454551432.

The previous prime is 31112030310007. The next prime is 31112030310013. The reversal of 31112030310011 is 11001303021113.

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 31112030310011 - 2² = 31112030310007 is a prime.

It is a super-2 number, since 2×31112030310011² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31112030310013) 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, 2222287879280 + ... + 2222287879293.

It is an arithmetic number, because the mean of its divisors is an integer number (8889151517148).

Almost surely, 2^{31112030310011} is an apocalyptic number.

31112030310011 is a deficient number, since it is larger than the sum of its proper divisors (4444575758581).

31112030310011 is an equidigital number, since it uses as much as digits as its factorization.

31112030310011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4444575758580.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 31112030310011 its reverse (11001303021113), we get a palindrome (42113333331124).

The spelling of 31112030310011 in words is "thirty-one trillion, one hundred twelve billion, thirty million, three hundred ten thousand, eleven".