2131011807 has 8 divisors (see below), whose sum is σ = 2877315840. Its totient is φ = 1402691160.

The previous prime is 2131011797. The next prime is 2131011851. The reversal of 2131011807 is 7081101312.

It is a happy number.

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

It is not a de Polignac number, because 2131011807 - 2¹⁶ = 2130946271 is a prime.

It is a super-2 number, since 2×2131011807² = 9082422643146810498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131011007) 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, 4495569 + ... + 4496042.

It is an arithmetic number, because the mean of its divisors is an integer number (359664480).

Almost surely, 2^2131011807 is an apocalyptic number.

2131011807 is a deficient number, since it is larger than the sum of its proper divisors (746304033).

2131011807 is an equidigital number, since it uses as much as digits as its factorization.

2131011807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8991693.

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 2131011807 is about 46162.8834346383. The cubic root of 2131011807 is about 1286.8520497725.

The spelling of 2131011807 in words is "two billion, one hundred thirty-one million, eleven thousand, eight hundred seven".