121310110031 has 8 divisors (see below), whose sum is σ = 132367718784. Its totient is φ = 110257404120.

The previous prime is 121310110013. The next prime is 121310110063. The reversal of 121310110031 is 130011013121.

It is a happy number.

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 121310110031 - 2¹⁴ = 121310093647 is a prime.

It is a super-2 number, since 2×121310110031² (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 = 121310109988 and 121310110015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121310110081) 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, 1173875 + ... + 1273028.

It is an arithmetic number, because the mean of its divisors is an integer number (16545964848).

Almost surely, 2^121310110031 is an apocalyptic number.

121310110031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121310110031 is a deficient number, since it is larger than the sum of its proper divisors (11057608753).

121310110031 is a wasteful number, since it uses less digits than its factorization.

121310110031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451421.

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

Adding to 121310110031 its reverse (130011013121), we get a palindrome (251321123152).

The spelling of 121310110031 in words is "one hundred twenty-one billion, three hundred ten million, one hundred ten thousand, thirty-one".