10131131211 has 4 divisors (see below), whose sum is σ = 13508174952. Its totient is φ = 6754087472.

The previous prime is 10131131167. The next prime is 10131131221. The reversal of 10131131211 is 11213113101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10131131211 is a prime.

It is a super-2 number, since 2×10131131211² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10131131221) 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, 1688521866 + ... + 1688521871.

It is an arithmetic number, because the mean of its divisors is an integer number (3377043738).

Almost surely, 2^10131131211 is an apocalyptic number.

10131131211 is a deficient number, since it is larger than the sum of its proper divisors (3377043741).

10131131211 is an equidigital number, since it uses as much as digits as its factorization.

10131131211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377043740.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 10131131211 its reverse (11213113101), we get a palindrome (21344244312).

The spelling of 10131131211 in words is "ten billion, one hundred thirty-one million, one hundred thirty-one thousand, two hundred eleven".