31120121122101 has 24 divisors (see below), whose sum is σ = 49248229170816. Its totient is φ = 18779732331840.

The previous prime is 31120121122093. The next prime is 31120121122133. The reversal of 31120121122101 is 10122112102113.

It is a happy number.

31120121122101 is a `hidden beast` number, since 31 + 1 + 201 + 211 + 221 + 0 + 1 = 666.

It is not a de Polignac number, because 31120121122101 - 2³ = 31120121122093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31120121122141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 674536285 + ... + 674582418.

It is an arithmetic number, because the mean of its divisors is an integer number (2052009548784).

Almost surely, 2^{31120121122101} is an apocalyptic number.

It is an amenable number.

31120121122101 is a deficient number, since it is larger than the sum of its proper divisors (18128108048715).

31120121122101 is a wasteful number, since it uses less digits than its factorization.

31120121122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349118953 (or 1349118950 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 31120121122101 its reverse (10122112102113), we get a palindrome (41242233224214).

The spelling of 31120121122101 in words is "thirty-one trillion, one hundred twenty billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred one".