10311111220131 has 8 divisors (see below), whose sum is σ = 15275720326160. Its totient is φ = 6874074146736.

The previous prime is 10311111220117. The next prime is 10311111220181. The reversal of 10311111220131 is 13102211111301.

10311111220131 is a `hidden beast` number, since 1 + 0 + 311 + 1 + 1 + 1 + 220 + 131 = 666.

It is not a de Polignac number, because 10311111220131 - 2¹⁴ = 10311111203747 is a prime.

It is a super-2 number, since 2×10311111220131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10311111220181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190946504050 + ... + 190946504103.

It is an arithmetic number, because the mean of its divisors is an integer number (1909465040770).

Almost surely, 2^{10311111220131} is an apocalyptic number.

10311111220131 is a deficient number, since it is larger than the sum of its proper divisors (4964609106029).

10311111220131 is an equidigital number, since it uses as much as digits as its factorization.

10311111220131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381893008162 (or 381893008156 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 10311111220131 its reverse (13102211111301), we get a palindrome (23413322331432).

The spelling of 10311111220131 in words is "ten trillion, three hundred eleven billion, one hundred eleven million, two hundred twenty thousand, one hundred thirty-one".