2311090971 has 8 divisors (see below), whose sum is σ = 3521662464. Its totient is φ = 1320623400.

The previous prime is 2311090937. The next prime is 2311090979. The reversal of 2311090971 is 1790901132.

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

It is not a de Polignac number, because 2311090971 - 2¹⁵ = 2311058203 is a prime.

It is a super-2 number, since 2×2311090971² = 10682282952475445682, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2311090979) 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, 55025955 + ... + 55025996.

It is an arithmetic number, because the mean of its divisors is an integer number (440207808).

Almost surely, 2^2311090971 is an apocalyptic number.

2311090971 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2311090971 is a deficient number, since it is larger than the sum of its proper divisors (1210571493).

2311090971 is a wasteful number, since it uses less digits than its factorization.

2311090971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110051961.

The product of its (nonzero) digits is 3402, while the sum is 33.

The square root of 2311090971 is about 48073.8075359129. The cubic root of 2311090971 is about 1322.1244812263.

The spelling of 2311090971 in words is "two billion, three hundred eleven million, ninety thousand, nine hundred seventy-one".