120205260643 has 8 divisors (see below), whose sum is σ = 133627684736. Its totient is φ = 107379388800.

The previous prime is 120205260613. The next prime is 120205260653. The reversal of 120205260643 is 346062502021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120205260643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (120205260613) 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, 149137638 + ... + 149138443.

It is an arithmetic number, because the mean of its divisors is an integer number (16703460592).

Almost surely, 2^120205260643 is an apocalyptic number.

120205260643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

120205260643 is a deficient number, since it is larger than the sum of its proper divisors (13422424093).

120205260643 is a wasteful number, since it uses less digits than its factorization.

120205260643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298276125.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 120205260643 its reverse (346062502021), we get a palindrome (466267762664).

The spelling of 120205260643 in words is "one hundred twenty billion, two hundred five million, two hundred sixty thousand, six hundred forty-three".