121201323323031 has 128 divisors (see below), whose sum is σ = 215773790453760. Its totient is φ = 65783009126016.

The previous prime is 121201323323011. The next prime is 121201323323051. The reversal of 121201323323031 is 130323323102121.

121201323323031 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 0 + 1 + 323 + 32 + 303 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (121201323323011) and next prime (121201323323051).

It is not a de Polignac number, because 121201323323031 - 2⁶ = 121201323322967 is a prime.

It is a super-2 number, since 2×121201323323031² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 121201323322986 and 121201323323004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201323323011) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 555281940 + ... + 555500166.

It is an arithmetic number, because the mean of its divisors is an integer number (1685732737920).

Almost surely, 2^{121201323323031} is an apocalyptic number.

121201323323031 is a deficient number, since it is larger than the sum of its proper divisors (94572467130729).

121201323323031 is a wasteful number, since it uses less digits than its factorization.

121201323323031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220170 (or 220164 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 121201323323031 its reverse (130323323102121), we get a palindrome (251524646425152).

The spelling of 121201323323031 in words is "one hundred twenty-one trillion, two hundred one billion, three hundred twenty-three million, three hundred twenty-three thousand, thirty-one".