12377100121 has 4 divisors (see below), whose sum is σ = 13105164852. Its totient is φ = 11649035392.

The previous prime is 12377100089. The next prime is 12377100139. The reversal of 12377100121 is 12100177321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3532638096 + 8844462025 = 59436^2 + 94045^2 .

It is not a de Polignac number, because 12377100121 - 2⁵ = 12377100089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12377100161) 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, 364032340 + ... + 364032373.

It is an arithmetic number, because the mean of its divisors is an integer number (3276291213).

Almost surely, 2^12377100121 is an apocalyptic number.

It is an amenable number.

12377100121 is a deficient number, since it is larger than the sum of its proper divisors (728064731).

12377100121 is an equidigital number, since it uses as much as digits as its factorization.

12377100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728064730.

The product of its (nonzero) digits is 588, while the sum is 25.

Adding to 12377100121 its reverse (12100177321), we get a palindrome (24477277442).

The spelling of 12377100121 in words is "twelve billion, three hundred seventy-seven million, one hundred thousand, one hundred twenty-one".