399240610123 has 8 divisors (see below), whose sum is σ = 401170555280. Its totient is φ = 397311022080.

The previous prime is 399240610121. The next prime is 399240610151. The reversal of 399240610123 is 321016042993.

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

It is a cyclic number.

It is not a de Polignac number, because 399240610123 - 2¹ = 399240610121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (399240610121) 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, 2306911 + ... + 2473927.

It is an arithmetic number, because the mean of its divisors is an integer number (50146319410).

Almost surely, 2^399240610123 is an apocalyptic number.

399240610123 is a deficient number, since it is larger than the sum of its proper divisors (1929945157).

399240610123 is a wasteful number, since it uses less digits than its factorization.

399240610123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178557.

The product of its (nonzero) digits is 69984, while the sum is 40.

The spelling of 399240610123 in words is "three hundred ninety-nine billion, two hundred forty million, six hundred ten thousand, one hundred twenty-three".