312304431031 has 8 divisors (see below), whose sum is σ = 317438930624. Its totient is φ = 307170407520.

The previous prime is 312304430993. The next prime is 312304431037. The reversal of 312304431031 is 130134403213.

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 312304431031 - 2¹¹ = 312304428983 is a prime.

It is a super-2 number, since 2×312304431031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312304430987 and 312304431005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312304431037) 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, 1351906 + ... + 1565968.

It is an arithmetic number, because the mean of its divisors is an integer number (39679866328).

Almost surely, 2^312304431031 is an apocalyptic number.

312304431031 is a deficient number, since it is larger than the sum of its proper divisors (5134499593).

312304431031 is a wasteful number, since it uses less digits than its factorization.

312304431031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238041.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 312304431031 its reverse (130134403213), we get a palindrome (442438834244).

The spelling of 312304431031 in words is "three hundred twelve billion, three hundred four million, four hundred thirty-one thousand, thirty-one".