120040404989 has 4 divisors (see below), whose sum is σ = 125259553056. Its totient is φ = 114821256924.

The previous prime is 120040404983. The next prime is 120040405003. The reversal of 120040404989 is 989404040021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 989404040021 = 61 ⋅16219738361.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120040404989 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 (120040404983) 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, 2609573999 + ... + 2609574044.

It is an arithmetic number, because the mean of its divisors is an integer number (31314888264).

Almost surely, 2^120040404989 is an apocalyptic number.

It is an amenable number.

120040404989 is a deficient number, since it is larger than the sum of its proper divisors (5219148067).

120040404989 is an equidigital number, since it uses as much as digits as its factorization.

120040404989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5219148066.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 120040404989 in words is "one hundred twenty billion, forty million, four hundred four thousand, nine hundred eighty-nine".