31320243101 has 8 divisors (see below), whose sum is σ = 35804844864. Its totient is φ = 26838211680.

The previous prime is 31320243079. The next prime is 31320243173. The reversal of 31320243101 is 10134202313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31320243101 - 2⁶ = 31320243037 is a prime.

It is a super-3 number, since 3×31320243101³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31320243181) 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, 616400 + ... + 665273.

It is an arithmetic number, because the mean of its divisors is an integer number (4475605608).

Almost surely, 2^31320243101 is an apocalyptic number.

It is an amenable number.

31320243101 is a deficient number, since it is larger than the sum of its proper divisors (4484601763).

31320243101 is a wasteful number, since it uses less digits than its factorization.

31320243101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285171.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31320243101 its reverse (10134202313), we get a palindrome (41454445414).

The spelling of 31320243101 in words is "thirty-one billion, three hundred twenty million, two hundred forty-three thousand, one hundred one".