121323133031 has 2 divisors, whose sum is σ = 121323133032. Its totient is φ = 121323133030.

The previous prime is 121323133003. The next prime is 121323133037. The reversal of 121323133031 is 130331323121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121323133031 is a prime.

It is a super-2 number, since 2×121323133031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121323132988 and 121323133006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121323133037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60661566515 + 60661566516.

It is an arithmetic number, because the mean of its divisors is an integer number (60661566516).

Almost surely, 2^121323133031 is an apocalyptic number.

121323133031 is a deficient number, since it is larger than the sum of its proper divisors (1).

121323133031 is an equidigital number, since it uses as much as digits as its factorization.

121323133031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 121323133031 its reverse (130331323121), we get a palindrome (251654456152).

The spelling of 121323133031 in words is "one hundred twenty-one billion, three hundred twenty-three million, one hundred thirty-three thousand, thirty-one".