31102213023201 has 4 divisors (see below), whose sum is σ = 41469617364272. Its totient is φ = 20734808682132.

The previous prime is 31102213023199. The next prime is 31102213023293. The reversal of 31102213023201 is 10232031220113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31102213023201 - 2¹ = 31102213023199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31102213023601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5183702170531 + ... + 5183702170536.

It is an arithmetic number, because the mean of its divisors is an integer number (10367404341068).

Almost surely, 2^{31102213023201} is an apocalyptic number.

It is an amenable number.

31102213023201 is a deficient number, since it is larger than the sum of its proper divisors (10367404341071).

31102213023201 is a wasteful number, since it uses less digits than its factorization.

31102213023201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10367404341070.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31102213023201 its reverse (10232031220113), we get a palindrome (41334244243314).

The spelling of 31102213023201 in words is "thirty-one trillion, one hundred two billion, two hundred thirteen million, twenty-three thousand, two hundred one".