120072306531 has 8 divisors (see below), whose sum is σ = 160346171664. Its totient is φ = 79923322880.

The previous prime is 120072306511. The next prime is 120072306533. The reversal of 120072306531 is 135603270021.

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 120072306531 - 2²³ = 120063917923 is a prime.

It is a super-2 number, since 2×120072306531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120072306533) 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, 31218126 + ... + 31221971.

It is an arithmetic number, because the mean of its divisors is an integer number (20043271458).

Almost surely, 2^120072306531 is an apocalyptic number.

120072306531 is a deficient number, since it is larger than the sum of its proper divisors (40273865133).

120072306531 is an equidigital number, since it uses as much as digits as its factorization.

120072306531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62440741.

The product of its (nonzero) digits is 7560, while the sum is 30.

Adding to 120072306531 its reverse (135603270021), we get a palindrome (255675576552).

The spelling of 120072306531 in words is "one hundred twenty billion, seventy-two million, three hundred six thousand, five hundred thirty-one".