31312000020323 has 16 divisors (see below), whose sum is σ = 35157996648960. Its totient is φ = 27644392432800.

The previous prime is 31312000020251. The next prime is 31312000020331. The reversal of 31312000020323 is 32302000021313.

It is not a de Polignac number, because 31312000020323 - 2¹⁰ = 31312000019299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31312000020295 and 31312000020304.

It is not an unprimeable number, because it can be changed into a prime (31312000020373) 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, 295293065 + ... + 295399082.

It is an arithmetic number, because the mean of its divisors is an integer number (2197374790560).

Almost surely, 2^{31312000020323} is an apocalyptic number.

31312000020323 is a deficient number, since it is larger than the sum of its proper divisors (3845996628637).

31312000020323 is a wasteful number, since it uses less digits than its factorization.

31312000020323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590692298.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31312000020323 its reverse (32302000021313), we get a palindrome (63614000041636).

The spelling of 31312000020323 in words is "thirty-one trillion, three hundred twelve billion, twenty thousand, three hundred twenty-three".