312503003400023 has 16 divisors (see below), whose sum is σ = 319191368981760. Its totient is φ = 305883742718400.

The previous prime is 312503003400019. The next prime is 312503003400103. The reversal of 312503003400023 is 320004300305213.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 312503003400023 - 2² = 312503003400019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312503003399965 and 312503003400001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312503003480023) 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, 12084893 + ... + 27767798.

It is an arithmetic number, because the mean of its divisors is an integer number (19949460561360).

Almost surely, 2^{312503003400023} is an apocalyptic number.

312503003400023 is a deficient number, since it is larger than the sum of its proper divisors (6688365581737).

312503003400023 is a wasteful number, since it uses less digits than its factorization.

312503003400023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39853558.

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 312503003400023 its reverse (320004300305213), we get a palindrome (632507303705236).

The spelling of 312503003400023 in words is "three hundred twelve trillion, five hundred three billion, three million, four hundred thousand, twenty-three".