121210012331 has 2 divisors, whose sum is σ = 121210012332. Its totient is φ = 121210012330.

The previous prime is 121210012279. The next prime is 121210012367. The reversal of 121210012331 is 133210012121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121210012331 is a prime.

It is a super-2 number, since 2×121210012331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121210012531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605006165 + 60605006166.

It is an arithmetic number, because the mean of its divisors is an integer number (60605006166).

Almost surely, 2^121210012331 is an apocalyptic number.

121210012331 is a deficient number, since it is larger than the sum of its proper divisors (1).

121210012331 is an equidigital number, since it uses as much as digits as its factorization.

121210012331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121210012331 its reverse (133210012121), we get a palindrome (254420024452).

The spelling of 121210012331 in words is "one hundred twenty-one billion, two hundred ten million, twelve thousand, three hundred thirty-one".