123145010399 has 4 divisors (see below), whose sum is σ = 126148547280. Its totient is φ = 120141473520.

The previous prime is 123145010383. The next prime is 123145010411. The reversal of 123145010399 is 993010541321.

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

It is a cyclic number.

It is not a de Polignac number, because 123145010399 - 2⁴ = 123145010383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123145010369) 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, 1501768379 + ... + 1501768460.

It is an arithmetic number, because the mean of its divisors is an integer number (31537136820).

Almost surely, 2^123145010399 is an apocalyptic number.

123145010399 is a deficient number, since it is larger than the sum of its proper divisors (3003536881).

123145010399 is an equidigital number, since it uses as much as digits as its factorization.

123145010399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003536880.

The product of its (nonzero) digits is 29160, while the sum is 38.

The spelling of 123145010399 in words is "one hundred twenty-three billion, one hundred forty-five million, ten thousand, three hundred ninety-nine".