121132202023 has 4 divisors (see below), whose sum is σ = 138436802320. Its totient is φ = 103827601728.

The previous prime is 121132201973. The next prime is 121132202029. The reversal of 121132202023 is 320202231121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320202231121 = 79 ⋅4053192799.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121132202023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121132202029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8652300138 + ... + 8652300151.

It is an arithmetic number, because the mean of its divisors is an integer number (34609200580).

Almost surely, 2^121132202023 is an apocalyptic number.

121132202023 is a deficient number, since it is larger than the sum of its proper divisors (17304600297).

121132202023 is an equidigital number, since it uses as much as digits as its factorization.

121132202023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17304600296.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 121132202023 its reverse (320202231121), we get a palindrome (441334433144).

The spelling of 121132202023 in words is "one hundred twenty-one billion, one hundred thirty-two million, two hundred two thousand, twenty-three".