120881253887 has 4 divisors (see below), whose sum is σ = 120926751936. Its totient is φ = 120835755840.

The previous prime is 120881253877. The next prime is 120881253907. The reversal of 120881253887 is 788352188021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120881253887 - 2⁸ = 120881253631 is a prime.

It is a super-2 number, since 2×120881253887² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120881253827) 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, 22745039 + ... + 22750352.

It is an arithmetic number, because the mean of its divisors is an integer number (30231687984).

Almost surely, 2^120881253887 is an apocalyptic number.

120881253887 is a deficient number, since it is larger than the sum of its proper divisors (45498049).

120881253887 is an equidigital number, since it uses as much as digits as its factorization.

120881253887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45498048.

The product of its (nonzero) digits is 1720320, while the sum is 53.

The spelling of 120881253887 in words is "one hundred twenty billion, eight hundred eighty-one million, two hundred fifty-three thousand, eight hundred eighty-seven".