31031112123001 has 16 divisors (see below), whose sum is σ = 33303187584000. Its totient is φ = 28848885912000.

The previous prime is 31031112122993. The next prime is 31031112123031. The reversal of 31031112123001 is 10032121113013.

It is a cyclic number.

It is not a de Polignac number, because 31031112123001 - 2³ = 31031112122993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31031112123001.

It is not an unprimeable number, because it can be changed into a prime (31031112123031) 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, 86548150 + ... + 86905951.

It is an arithmetic number, because the mean of its divisors is an integer number (2081449224000).

Almost surely, 2^{31031112123001} is an apocalyptic number.

31031112123001 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31031112123001 is a deficient number, since it is larger than the sum of its proper divisors (2272075460999).

31031112123001 is a wasteful number, since it uses less digits than its factorization.

31031112123001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173454360.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 31031112123001 its reverse (10032121113013), we get a palindrome (41063233236014).

The spelling of 31031112123001 in words is "thirty-one trillion, thirty-one billion, one hundred twelve million, one hundred twenty-three thousand, one".