31102201120031 has 8 divisors (see below), whose sum is σ = 31216584386064. Its totient is φ = 30987844090560.

The previous prime is 31102201120019. The next prime is 31102201120051. The reversal of 31102201120031 is 13002110220113.

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

It is a cyclic number.

It is not a de Polignac number, because 31102201120031 - 2¹⁸ = 31102200857887 is a prime.

It is a super-2 number, since 2×31102201120031² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31102201119991 and 31102201120009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31102201120051) 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, 4182296 + ... + 8927261.

It is an arithmetic number, because the mean of its divisors is an integer number (3902073048258).

Almost surely, 2^{31102201120031} is an apocalyptic number.

31102201120031 is a deficient number, since it is larger than the sum of its proper divisors (114383266033).

31102201120031 is a wasteful number, since it uses less digits than its factorization.

31102201120031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13118281.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31102201120031 its reverse (13002110220113), we get a palindrome (44104311340144).

The spelling of 31102201120031 in words is "thirty-one trillion, one hundred two billion, two hundred one million, one hundred twenty thousand, thirty-one".