1031132220131 has 16 divisors (see below), whose sum is σ = 1169178393600. Its totient is φ = 901500111648.

The previous prime is 1031132220127. The next prime is 1031132220191. The reversal of 1031132220131 is 1310222311301.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1031132220131 - 2² = 1031132220127 is a prime.

It is a super-2 number, since 2×1031132220131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031132220121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518030 + ... + 1526636.

It is an arithmetic number, because the mean of its divisors is an integer number (73073649600).

Almost surely, 2^{1031132220131} is an apocalyptic number.

1031132220131 is a deficient number, since it is larger than the sum of its proper divisors (138046173469).

1031132220131 is a wasteful number, since it uses less digits than its factorization.

1031132220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012778.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1031132220131 its reverse (1310222311301), we get a palindrome (2341354531432).

The spelling of 1031132220131 in words is "one trillion, thirty-one billion, one hundred thirty-two million, two hundred twenty thousand, one hundred thirty-one".