311431030431442 has 16 divisors (see below), whose sum is σ = 485287227217152. Its totient is φ = 149732609654160.

The previous prime is 311431030431427. The next prime is 311431030431481. The reversal of 311431030431442 is 244134030134113.

It is a junction number, because it is equal to n+sod(n) for n = 311431030431398 and 311431030431407.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15997063948 + ... + 15997083415.

It is an arithmetic number, because the mean of its divisors is an integer number (30330451701072).

Almost surely, 2^{311431030431442} is an apocalyptic number.

311431030431442 is a deficient number, since it is larger than the sum of its proper divisors (173856196785710).

311431030431442 is a wasteful number, since it uses less digits than its factorization.

311431030431442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31994147553.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 311431030431442 its reverse (244134030134113), we get a palindrome (555565060565555).

The spelling of 311431030431442 in words is "three hundred eleven trillion, four hundred thirty-one billion, thirty million, four hundred thirty-one thousand, four hundred forty-two".