120561430730 has 32 divisors (see below), whose sum is σ = 233773150464. Its totient is φ = 44501760576.

The previous prime is 120561430723. The next prime is 120561430757. The reversal of 120561430730 is 37034165021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306809 + ... + 579011.

It is an arithmetic number, because the mean of its divisors is an integer number (7305410952).

Almost surely, 2^120561430730 is an apocalyptic number.

120561430730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120561430730 is a deficient number, since it is larger than the sum of its proper divisors (113211719734).

120561430730 is a wasteful number, since it uses less digits than its factorization.

120561430730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275630.

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 120561430730 its reverse (37034165021), we get a palindrome (157595595751).

The spelling of 120561430730 in words is "one hundred twenty billion, five hundred sixty-one million, four hundred thirty thousand, seven hundred thirty".