121323243001 has 6 divisors (see below), whose sum is σ = 128879708270. Its totient is φ = 114186581376.

The previous prime is 121323242993. The next prime is 121323243011. The reversal of 121323243001 is 100342323121.

It can be written as a sum of positive squares in 3 ways, for example, as 56717804025 + 64605438976 = 238155^2 + 254176^2 .

It is not a de Polignac number, because 121323243001 - 2³ = 121323242993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121323243011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 209901516 + ... + 209902093.

Almost surely, 2^121323243001 is an apocalyptic number.

It is an amenable number.

121323243001 is a deficient number, since it is larger than the sum of its proper divisors (7556465269).

121323243001 is an equidigital number, since it uses as much as digits as its factorization.

121323243001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419803643 (or 419803626 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 121323243001 its reverse (100342323121), we get a palindrome (221665566122).

The spelling of 121323243001 in words is "one hundred twenty-one billion, three hundred twenty-three million, two hundred forty-three thousand, one".