120442531 has 8 divisors (see below), whose sum is σ = 133056000. Its totient is φ = 108106440.

The previous prime is 120442489. The next prime is 120442537. The reversal of 120442531 is 135244021.

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 120442531 - 2⁹ = 120442019 is a prime.

It is a super-2 number, since 2×120442531² = 29012806547371922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120442537) 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, 68431 + ... + 70168.

It is an arithmetic number, because the mean of its divisors is an integer number (16632000).

Almost surely, 2^120442531 is an apocalyptic number.

120442531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120442531 is a deficient number, since it is larger than the sum of its proper divisors (12613469).

120442531 is a wasteful number, since it uses less digits than its factorization.

120442531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138689.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 120442531 is about 10974.6312466524. The cubic root of 120442531 is about 493.8479906779.

Adding to 120442531 its reverse (135244021), we get a palindrome (255686552).

The spelling of 120442531 in words is "one hundred twenty million, four hundred forty-two thousand, five hundred thirty-one".