121323230031 has 16 divisors (see below), whose sum is σ = 164758901760. Its totient is φ = 79396692960.

The previous prime is 121323230023. The next prime is 121323230033. The reversal of 121323230031 is 130032323121.

It is not a de Polignac number, because 121323230031 - 2³ = 121323230023 is a prime.

It is a super-2 number, since 2×121323230031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121323230033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1438515 + ... + 1520516.

It is an arithmetic number, because the mean of its divisors is an integer number (10297431360).

Almost surely, 2^121323230031 is an apocalyptic number.

121323230031 is a deficient number, since it is larger than the sum of its proper divisors (43435671729).

121323230031 is a wasteful number, since it uses less digits than its factorization.

121323230031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959286.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 121323230031 its reverse (130032323121), we get a palindrome (251355553152).

The spelling of 121323230031 in words is "one hundred twenty-one billion, three hundred twenty-three million, two hundred thirty thousand, thirty-one".