31021104001001 has 16 divisors (see below), whose sum is σ = 32209599525120. Its totient is φ = 29854909754880.

The previous prime is 31021104000973. The next prime is 31021104001007. The reversal of 31021104001001 is 10010040112013.

It is not a de Polignac number, because 31021104001001 - 2⁶ = 31021104000937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31021104001007) 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, 8617625 + ... + 11675001.

It is an arithmetic number, because the mean of its divisors is an integer number (2013099970320).

Almost surely, 2^{31021104001001} is an apocalyptic number.

It is an amenable number.

31021104001001 is a deficient number, since it is larger than the sum of its proper divisors (1188495524119).

31021104001001 is a wasteful number, since it uses less digits than its factorization.

31021104001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061024.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 31021104001001 its reverse (10010040112013), we get a palindrome (41031144113014).

The spelling of 31021104001001 in words is "thirty-one trillion, twenty-one billion, one hundred four million, one thousand, one".