120012357 has 4 divisors (see below), whose sum is σ = 160016480. Its totient is φ = 80008236.

The previous prime is 120012337. The next prime is 120012359. The reversal of 120012357 is 753210021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 753210021 = 3 ⋅251070007.

It is not a de Polignac number, because 120012357 - 2⁶ = 120012293 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 (120012359) 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, 20002057 + ... + 20002062.

It is an arithmetic number, because the mean of its divisors is an integer number (40004120).

Almost surely, 2^120012357 is an apocalyptic number.

It is an amenable number.

120012357 is a deficient number, since it is larger than the sum of its proper divisors (40004123).

120012357 is an equidigital number, since it uses as much as digits as its factorization.

120012357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40004122.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 120012357 is about 10955.0151528877. The cubic root of 120012357 is about 493.2593448309.

Adding to 120012357 its reverse (753210021), we get a palindrome (873222378).

The spelling of 120012357 in words is "one hundred twenty million, twelve thousand, three hundred fifty-seven".