123105146563745 has 16 divisors (see below), whose sum is σ = 148786733399040. Its totient is φ = 97778662421184.

The previous prime is 123105146563723. The next prime is 123105146563747. The reversal of 123105146563745 is 547365641501321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123105146563745 is a prime.

It is a super-2 number, since 2×123105146563745² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123105146563747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98347529 + ... + 99591398.

It is an arithmetic number, because the mean of its divisors is an integer number (9299170837440).

Almost surely, 2^{123105146563745} is an apocalyptic number.

It is an amenable number.

123105146563745 is a deficient number, since it is larger than the sum of its proper divisors (25681586835295).

123105146563745 is a wasteful number, since it uses less digits than its factorization.

123105146563745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197939824.

The product of its (nonzero) digits is 9072000, while the sum is 53.

The spelling of 123105146563745 in words is "one hundred twenty-three trillion, one hundred five billion, one hundred forty-six million, five hundred sixty-three thousand, seven hundred forty-five".