123245023439 has 8 divisors (see below), whose sum is σ = 130148753280. Its totient is φ = 116383008600.

The previous prime is 123245023411. The next prime is 123245023469. The reversal of 123245023439 is 934320542321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123245023439 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 (123245023409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10422677 + ... + 10434494.

It is an arithmetic number, because the mean of its divisors is an integer number (16268594160).

Almost surely, 2^123245023439 is an apocalyptic number.

123245023439 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

123245023439 is a deficient number, since it is larger than the sum of its proper divisors (6903729841).

123245023439 is a wasteful number, since it uses less digits than its factorization.

123245023439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20857501.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 123245023439 in words is "one hundred twenty-three billion, two hundred forty-five million, twenty-three thousand, four hundred thirty-nine".