31113113221301 has 4 divisors (see below), whose sum is σ = 31506950097600. Its totient is φ = 30719276345004.

The previous prime is 31113113221291. The next prime is 31113113221331. The reversal of 31113113221301 is 10312231131113.

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 a cyclic number.

It is not a de Polignac number, because 31113113221301 - 2¹⁸ = 31113112959157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113113221331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196918438031 + ... + 196918438188.

It is an arithmetic number, because the mean of its divisors is an integer number (7876737524400).

Almost surely, 2^{31113113221301} is an apocalyptic number.

It is an amenable number.

31113113221301 is a deficient number, since it is larger than the sum of its proper divisors (393836876299).

31113113221301 is an equidigital number, since it uses as much as digits as its factorization.

31113113221301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393836876298.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 31113113221301 its reverse (10312231131113), we get a palindrome (41425344352414).

The spelling of 31113113221301 in words is "thirty-one trillion, one hundred thirteen billion, one hundred thirteen million, two hundred twenty-one thousand, three hundred one".