311345552131 has 8 divisors (see below), whose sum is σ = 329667090480. Its totient is φ = 293024802048.

The previous prime is 311345552093. The next prime is 311345552137. The reversal of 311345552131 is 131255543113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311345552131 - 2⁷ = 311345552003 is a prime.

It is a super-2 number, since 2×311345552131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311345552137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744775 + ... + 1085071.

It is an arithmetic number, because the mean of its divisors is an integer number (41208386310).

Almost surely, 2^311345552131 is an apocalyptic number.

311345552131 is a deficient number, since it is larger than the sum of its proper divisors (18321538349).

311345552131 is a wasteful number, since it uses less digits than its factorization.

311345552131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394133.

The product of its digits is 27000, while the sum is 34.

The spelling of 311345552131 in words is "three hundred eleven billion, three hundred forty-five million, five hundred fifty-two thousand, one hundred thirty-one".