121322203131 has 24 divisors (see below), whose sum is σ = 173672304400. Its totient is φ = 75273903936.

The previous prime is 121322203127. The next prime is 121322203139. The reversal of 121322203131 is 131302223121.

It is not a de Polignac number, because 121322203131 - 2² = 121322203127 is a prime.

It is a super-2 number, since 2×121322203131² (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 = 121322203098 and 121322203107.

It is not an unprimeable number, because it can be changed into a prime (121322203139) 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, 974356 + ... + 1091793.

Almost surely, 2^121322203131 is an apocalyptic number.

121322203131 is a deficient number, since it is larger than the sum of its proper divisors (52350101269).

121322203131 is a wasteful number, since it uses less digits than its factorization.

121322203131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066235 (or 2066212 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121322203131 its reverse (131302223121), we get a palindrome (252624426252).

The spelling of 121322203131 in words is "one hundred twenty-one billion, three hundred twenty-two million, two hundred three thousand, one hundred thirty-one".