120831538 has 8 divisors (see below), whose sum is σ = 181301760. Its totient is φ = 60397620.

The previous prime is 120831533. The next prime is 120831539. The reversal of 120831538 is 835138021.

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

It is not an unprimeable number, because it can be changed into a prime (120831533) 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, 1903 + ... + 15661.

It is an arithmetic number, because the mean of its divisors is an integer number (22662720).

Almost surely, 2^120831538 is an apocalyptic number.

120831538 is a deficient number, since it is larger than the sum of its proper divisors (60470222).

120831538 is a wasteful number, since it uses less digits than its factorization.

120831538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18152.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 120831538 is about 10992.3399692695. The cubic root of 120831538 is about 494.3790983831.

Adding to 120831538 its reverse (835138021), we get a palindrome (955969559).

The spelling of 120831538 in words is "one hundred twenty million, eight hundred thirty-one thousand, five hundred thirty-eight".