121313111331 has 8 divisors (see below), whose sum is σ = 162931478544. Its totient is φ = 80285075840.

The previous prime is 121313111327. The next prime is 121313111347. The reversal of 121313111331 is 133111313121.

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 121313111331 - 2² = 121313111327 is a prime.

It is a super-2 number, since 2×121313111331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121313111298 and 121313111307.

It is not an unprimeable number, because it can be changed into a prime (121313111531) 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, 147582450 + ... + 147583271.

It is an arithmetic number, because the mean of its divisors is an integer number (20366434818).

Almost surely, 2^121313111331 is an apocalyptic number.

121313111331 is a deficient number, since it is larger than the sum of its proper divisors (41618367213).

121313111331 is a wasteful number, since it uses less digits than its factorization.

121313111331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295165861.

The product of its digits is 162, while the sum is 21.

Adding to 121313111331 its reverse (133111313121), we get a palindrome (254424424452).

The spelling of 121313111331 in words is "one hundred twenty-one billion, three hundred thirteen million, one hundred eleven thousand, three hundred thirty-one".