123302134323121 has 4 divisors (see below), whose sum is σ = 132786913886452. Its totient is φ = 113817354759792.

The previous prime is 123302134323107. The next prime is 123302134323127. The reversal of 123302134323121 is 121323431203321.

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 56181620793600 + 67120513529521 = 7495440^2 + 8192711^2 .

It is a cyclic number.

It is not a de Polignac number, because 123302134323121 - 2¹³ = 123302134314929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123302134323127) 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, 4742389781646 + ... + 4742389781671.

It is an arithmetic number, because the mean of its divisors is an integer number (33196728471613).

Almost surely, 2^{123302134323121} is an apocalyptic number.

It is an amenable number.

123302134323121 is a deficient number, since it is larger than the sum of its proper divisors (9484779563331).

123302134323121 is an equidigital number, since it uses as much as digits as its factorization.

123302134323121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9484779563330.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 123302134323121 its reverse (121323431203321), we get a palindrome (244625565526442).

The spelling of 123302134323121 in words is "one hundred twenty-three trillion, three hundred two billion, one hundred thirty-four million, three hundred twenty-three thousand, one hundred twenty-one".