123620350699 has 4 divisors (see below), whose sum is σ = 124509705880. Its totient is φ = 122730995520.

The previous prime is 123620350663. The next prime is 123620350709. The reversal of 123620350699 is 996053026321.

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 123620350699 - 2⁷ = 123620350571 is a prime.

It is a super-2 number, since 2×123620350699² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123620350649) 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, 444677382 + ... + 444677659.

It is an arithmetic number, because the mean of its divisors is an integer number (31127426470).

Almost surely, 2^123620350699 is an apocalyptic number.

123620350699 is a deficient number, since it is larger than the sum of its proper divisors (889355181).

123620350699 is an equidigital number, since it uses as much as digits as its factorization.

123620350699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889355180.

The product of its (nonzero) digits is 524880, while the sum is 46.

The spelling of 123620350699 in words is "one hundred twenty-three billion, six hundred twenty million, three hundred fifty thousand, six hundred ninety-nine".