120241002991 has 4 divisors (see below), whose sum is σ = 120244979800. Its totient is φ = 120237026184.

The previous prime is 120241002929. The next prime is 120241002997. The reversal of 120241002991 is 199200142021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 199200142021 = 17 ⋅11717655413.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120241002991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120241002997) 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, 1942701 + ... + 2003638.

It is an arithmetic number, because the mean of its divisors is an integer number (30061244950).

Almost surely, 2^120241002991 is an apocalyptic number.

120241002991 is a deficient number, since it is larger than the sum of its proper divisors (3976809).

120241002991 is an equidigital number, since it uses as much as digits as its factorization.

120241002991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3976808.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 120241002991 in words is "one hundred twenty billion, two hundred forty-one million, two thousand, nine hundred ninety-one".