311431401239 has 16 divisors (see below), whose sum is σ = 374679118080. Its totient is φ = 252874923840.

The previous prime is 311431401221. The next prime is 311431401241. The reversal of 311431401239 is 932104134113.

It is not a de Polignac number, because 311431401239 - 2¹² = 311431397143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311431401209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2187059 + ... + 2325099.

It is an arithmetic number, because the mean of its divisors is an integer number (23417444880).

Almost surely, 2^311431401239 is an apocalyptic number.

311431401239 is a deficient number, since it is larger than the sum of its proper divisors (63247716841).

311431401239 is a wasteful number, since it uses less digits than its factorization.

311431401239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155030.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 311431401239 in words is "three hundred eleven billion, four hundred thirty-one million, four hundred one thousand, two hundred thirty-nine".