121131423004 has 6 divisors (see below), whose sum is σ = 211979990264. Its totient is φ = 60565711500.

The previous prime is 121131423001. The next prime is 121131423011. The reversal of 121131423004 is 400324131121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121131423001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15141427872 + ... + 15141427879.

Almost surely, 2^121131423004 is an apocalyptic number.

It is an amenable number.

121131423004 is a deficient number, since it is larger than the sum of its proper divisors (90848567260).

121131423004 is a wasteful number, since it uses less digits than its factorization.

121131423004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30282855755 (or 30282855753 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 121131423004 its reverse (400324131121), we get a palindrome (521455554125).

The spelling of 121131423004 in words is "one hundred twenty-one billion, one hundred thirty-one million, four hundred twenty-three thousand, four".