121311120131 has 8 divisors (see below), whose sum is σ = 129216215520. Its totient is φ = 113491485568.

The previous prime is 121311120103. The next prime is 121311120149. The reversal of 121311120131 is 131021113121.

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 121311120131 - 2¹⁴ = 121311103747 is a prime.

It is a super-2 number, since 2×121311120131² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121311120101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21362276 + ... + 21367953.

It is an arithmetic number, because the mean of its divisors is an integer number (16152026940).

Almost surely, 2^121311120131 is an apocalyptic number.

121311120131 is a deficient number, since it is larger than the sum of its proper divisors (7905095389).

121311120131 is a wasteful number, since it uses less digits than its factorization.

121311120131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42730413.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 121311120131 its reverse (131021113121), we get a palindrome (252332233252).

The spelling of 121311120131 in words is "one hundred twenty-one billion, three hundred eleven million, one hundred twenty thousand, one hundred thirty-one".