2113132031 has 4 divisors (see below), whose sum is σ = 2113603752. Its totient is φ = 2112660312.

The previous prime is 2113132027. The next prime is 2113132057. The reversal of 2113132031 is 1302313112.

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 2113132031 - 2² = 2113132027 is a prime.

It is a super-2 number, since 2×2113132031² = 8930653960876369922, which 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 (2113132001) 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, 229076 + ... + 238121.

It is an arithmetic number, because the mean of its divisors is an integer number (528400938).

Almost surely, 2^2113132031 is an apocalyptic number.

2113132031 is a deficient number, since it is larger than the sum of its proper divisors (471721).

2113132031 is an equidigital number, since it uses as much as digits as its factorization.

2113132031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471720.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2113132031 is about 45968.8158537938. The cubic root of 2113132031 is about 1283.2429226388.

Adding to 2113132031 its reverse (1302313112), we get a palindrome (3415445143).

The spelling of 2113132031 in words is "two billion, one hundred thirteen million, one hundred thirty-two thousand, thirty-one".