123145700663 has 4 divisors (see below), whose sum is σ = 124364965128. Its totient is φ = 121926436200.

The previous prime is 123145700653. The next prime is 123145700669. The reversal of 123145700663 is 366007541321.

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 123145700663 - 2¹⁴ = 123145684279 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 (123145700669) 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, 609632081 + ... + 609632282.

It is an arithmetic number, because the mean of its divisors is an integer number (31091241282).

Almost surely, 2^123145700663 is an apocalyptic number.

123145700663 is a deficient number, since it is larger than the sum of its proper divisors (1219264465).

123145700663 is a wasteful number, since it uses less digits than its factorization.

123145700663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219264464.

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 123145700663 in words is "one hundred twenty-three billion, one hundred forty-five million, seven hundred thousand, six hundred sixty-three".