311012301131 has 24 divisors (see below), whose sum is σ = 385211823120. Its totient is φ = 249498880512.

The previous prime is 311012301107. The next prime is 311012301221. The reversal of 311012301131 is 131103210113.

It is a de Polignac number, because none of the positive numbers 2^k-311012301131 is a prime.

It is a super-2 number, since 2×311012301131² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311012301731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 893810 + ... + 1192023.

It is an arithmetic number, because the mean of its divisors is an integer number (16050492630).

Almost surely, 2^311012301131 is an apocalyptic number.

311012301131 is a deficient number, since it is larger than the sum of its proper divisors (74199521989).

311012301131 is a wasteful number, since it uses less digits than its factorization.

311012301131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086043 (or 2086036 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 311012301131 its reverse (131103210113), we get a palindrome (442115511244).

The spelling of 311012301131 in words is "three hundred eleven billion, twelve million, three hundred one thousand, one hundred thirty-one".