121020000023 has 8 divisors (see below), whose sum is σ = 130608314928. Its totient is φ = 111471554304.

The previous prime is 121019999983. The next prime is 121020000041. The reversal of 121020000023 is 320000020121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121020000023 - 2²⁰ = 121018951447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121019999959 and 121020000013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020000043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9960986 + ... + 9973127.

It is an arithmetic number, because the mean of its divisors is an integer number (16326039366).

Almost surely, 2^121020000023 is an apocalyptic number.

121020000023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121020000023 is a deficient number, since it is larger than the sum of its proper divisors (9588314905).

121020000023 is a wasteful number, since it uses less digits than its factorization.

121020000023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19934593.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 121020000023 its reverse (320000020121), we get a palindrome (441020020144).

The spelling of 121020000023 in words is "one hundred twenty-one billion, twenty million, twenty-three", and thus it is an aban number.