121023122020131 has 32 divisors (see below), whose sum is σ = 164075484303360. Its totient is φ = 79336417585824.

The previous prime is 121023122020117. The next prime is 121023122020243. The reversal of 121023122020131 is 131020221320121.

It is not a de Polignac number, because 121023122020131 - 2²¹ = 121023119922979 is a prime.

It is a super-2 number, since 2×121023122020131² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121023122020098 and 121023122020107.

It is not an unprimeable number, because it can be changed into a prime (121023122020111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44642026 + ... + 47275328.

It is an arithmetic number, because the mean of its divisors is an integer number (5127358884480).

Almost surely, 2^{121023122020131} is an apocalyptic number.

121023122020131 is a deficient number, since it is larger than the sum of its proper divisors (43052362283229).

121023122020131 is a wasteful number, since it uses less digits than its factorization.

121023122020131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634255.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 121023122020131 its reverse (131020221320121), we get a palindrome (252043343340252).

The spelling of 121023122020131 in words is "one hundred twenty-one trillion, twenty-three billion, one hundred twenty-two million, twenty thousand, one hundred thirty-one".