123938150897 has 32 divisors (see below), whose sum is σ = 140393041536. Its totient is φ = 108428544000.

The previous prime is 123938150873. The next prime is 123938150909. The reversal of 123938150897 is 798051839321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123938150897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123938150857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62185733 + ... + 62187725.

It is an arithmetic number, because the mean of its divisors is an integer number (4387282548).

Almost surely, 2^123938150897 is an apocalyptic number.

It is an amenable number.

123938150897 is a deficient number, since it is larger than the sum of its proper divisors (16454890639).

123938150897 is a wasteful number, since it uses less digits than its factorization.

123938150897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 123938150897 in words is "one hundred twenty-three billion, nine hundred thirty-eight million, one hundred fifty thousand, eight hundred ninety-seven".