1311101232131 has 32 divisors (see below), whose sum is σ = 1384266723840. Its totient is φ = 1239390566656.

The previous prime is 1311101232109. The next prime is 1311101232143. The reversal of 1311101232131 is 1312321011131.

It is a cyclic number.

It is not a de Polignac number, because 1311101232131 - 2³⁴ = 1293921362947 is a prime.

It is a super-2 number, since 2×1311101232131² (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 (1311101232151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 800916245 + ... + 800917881.

It is an arithmetic number, because the mean of its divisors is an integer number (43258335120).

Almost surely, 2^{1311101232131} is an apocalyptic number.

1311101232131 is a deficient number, since it is larger than the sum of its proper divisors (73165491709).

1311101232131 is a wasteful number, since it uses less digits than its factorization.

1311101232131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1311101232131 its reverse (1312321011131), we get a palindrome (2623422243262).

The spelling of 1311101232131 in words is "one trillion, three hundred eleven billion, one hundred one million, two hundred thirty-two thousand, one hundred thirty-one".