31331123103023 has 8 divisors (see below), whose sum is σ = 31862969093760. Its totient is φ = 30799304112600.

The previous prime is 31331123102963. The next prime is 31331123103031. The reversal of 31331123103023 is 32030132113313.

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 31331123103023 - 2⁶ = 31331123102959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31331123102983 and 31331123103001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31331123103043) 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, 4402715 + ... + 9057932.

It is an arithmetic number, because the mean of its divisors is an integer number (3982871136720).

Almost surely, 2^{31331123103023} is an apocalyptic number.

31331123103023 is a deficient number, since it is larger than the sum of its proper divisors (531845990737).

31331123103023 is a wasteful number, since it uses less digits than its factorization.

31331123103023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13500157.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 31331123103023 its reverse (32030132113313), we get a palindrome (63361255216336).

The spelling of 31331123103023 in words is "thirty-one trillion, three hundred thirty-one billion, one hundred twenty-three million, one hundred three thousand, twenty-three".