311430013231311 has 64 divisors (see below), whose sum is σ = 500794625802240. Its totient is φ = 190134920142720.

The previous prime is 311430013231303. The next prime is 311430013231367. The reversal of 311430013231311 is 113132310034113.

311430013231311 is a `hidden beast` number, since 3 + 1 + 1 + 4 + 300 + 1 + 32 + 313 + 11 = 666.

It is not a de Polignac number, because 311430013231311 - 2³ = 311430013231303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311430013236311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2137973821 + ... + 2138119481.

It is an arithmetic number, because the mean of its divisors is an integer number (7824916028160).

Almost surely, 2^{311430013231311} is an apocalyptic number.

311430013231311 is a deficient number, since it is larger than the sum of its proper divisors (189364612570929).

311430013231311 is a wasteful number, since it uses less digits than its factorization.

311430013231311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193773 (or 193767 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 311430013231311 its reverse (113132310034113), we get a palindrome (424562323265424).

The spelling of 311430013231311 in words is "three hundred eleven trillion, four hundred thirty billion, thirteen million, two hundred thirty-one thousand, three hundred eleven".