121322100121031 has 2 divisors, whose sum is σ = 121322100121032. Its totient is φ = 121322100121030.

The previous prime is 121322100121021. The next prime is 121322100121043. The reversal of 121322100121031 is 130121001223121.

It is a weak prime.

It is an emirp because it is prime and its reverse (130121001223121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121322100121031 - 2³⁴ = 121304920251847 is a prime.

It is a super-2 number, since 2×121322100121031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121322100120994 and 121322100121012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121322100121021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60661050060515 + 60661050060516.

It is an arithmetic number, because the mean of its divisors is an integer number (60661050060516).

Almost surely, 2^{121322100121031} is an apocalyptic number.

121322100121031 is a deficient number, since it is larger than the sum of its proper divisors (1).

121322100121031 is an equidigital number, since it uses as much as digits as its factorization.

121322100121031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 121322100121031 its reverse (130121001223121), we get a palindrome (251443101344152).

The spelling of 121322100121031 in words is "one hundred twenty-one trillion, three hundred twenty-two billion, one hundred million, one hundred twenty-one thousand, thirty-one".