10231131211 has 4 divisors (see below), whose sum is σ = 11692721392. Its totient is φ = 8769541032.

The previous prime is 10231131187. The next prime is 10231131227. The reversal of 10231131211 is 11213113201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11213113201 = 523 ⋅21439987.

It is not a de Polignac number, because 10231131211 - 2¹¹ = 10231129163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10231131271) 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, 730795080 + ... + 730795093.

It is an arithmetic number, because the mean of its divisors is an integer number (2923180348).

Almost surely, 2^10231131211 is an apocalyptic number.

10231131211 is a deficient number, since it is larger than the sum of its proper divisors (1461590181).

10231131211 is an equidigital number, since it uses as much as digits as its factorization.

10231131211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461590180.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 10231131211 its reverse (11213113201), we get a palindrome (21444244412).

The spelling of 10231131211 in words is "ten billion, two hundred thirty-one million, one hundred thirty-one thousand, two hundred eleven".