121101310031 has 12 divisors (see below), whose sum is σ = 131391093960. Its totient is φ = 111566126880.

The previous prime is 121101309977. The next prime is 121101310039. The reversal of 121101310031 is 130013101121.

It is a happy number.

It is not a de Polignac number, because 121101310031 - 2¹⁴ = 121101293647 is a prime.

It is a super-2 number, since 2×121101310031² (a number of 23 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 = 121101309988 and 121101310015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101310039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 617885 + ... + 789926.

It is an arithmetic number, because the mean of its divisors is an integer number (10949257830).

Almost surely, 2^121101310031 is an apocalyptic number.

121101310031 is a deficient number, since it is larger than the sum of its proper divisors (10289783929).

121101310031 is a wasteful number, since it uses less digits than its factorization.

121101310031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408346 (or 1408333 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 121101310031 its reverse (130013101121), we get a palindrome (251114411152).

The spelling of 121101310031 in words is "one hundred twenty-one billion, one hundred one million, three hundred ten thousand, thirty-one".