312331101032123 has 4 divisors (see below), whose sum is σ = 313458650133600. Its totient is φ = 311203551930648.

The previous prime is 312331101032087. The next prime is 312331101032147. The reversal of 312331101032123 is 321230101133213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312331101032123 - 2³² = 312326806064827 is a prime.

It is a super-3 number, since 3×312331101032123³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312331101032092 and 312331101032101.

It is not an unprimeable number, because it can be changed into a prime (312331101032023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563774550323 + ... + 563774550876.

It is an arithmetic number, because the mean of its divisors is an integer number (78364662533400).

Almost surely, 2^{312331101032123} is an apocalyptic number.

312331101032123 is a deficient number, since it is larger than the sum of its proper divisors (1127549101477).

312331101032123 is a wasteful number, since it uses less digits than its factorization.

312331101032123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127549101476.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 312331101032123 its reverse (321230101133213), we get a palindrome (633561202165336).

The spelling of 312331101032123 in words is "three hundred twelve trillion, three hundred thirty-one billion, one hundred one million, thirty-two thousand, one hundred twenty-three".