312000311131 has 8 divisors (see below), whose sum is σ = 313268792000. Its totient is φ = 310732692480.

The previous prime is 312000311123. The next prime is 312000311149. The reversal of 312000311131 is 131113000213.

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 312000311131 - 2³ = 312000311123 is a prime.

It is a super-2 number, since 2×312000311131² (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 (312000311111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514645 + ... + 942793.

It is an arithmetic number, because the mean of its divisors is an integer number (39158599000).

Almost surely, 2^312000311131 is an apocalyptic number.

312000311131 is a deficient number, since it is larger than the sum of its proper divisors (1268480869).

312000311131 is a wasteful number, since it uses less digits than its factorization.

312000311131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431109.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 312000311131 its reverse (131113000213), we get a palindrome (443113311344).

The spelling of 312000311131 in words is "three hundred twelve billion, three hundred eleven thousand, one hundred thirty-one".