120988919 has 4 divisors (see below), whose sum is σ = 121017696. Its totient is φ = 120960144.

The previous prime is 120988897. The next prime is 120988943. The reversal of 120988919 is 919889021.

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 120988919 - 2¹² = 120984823 is a prime.

It is a super-2 number, since 2×120988919² = 29276637041577122, which 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 (120988969) 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, 6719 + ... + 16944.

It is an arithmetic number, because the mean of its divisors is an integer number (30254424).

Almost surely, 2^120988919 is an apocalyptic number.

120988919 is a deficient number, since it is larger than the sum of its proper divisors (28777).

120988919 is an equidigital number, since it uses as much as digits as its factorization.

120988919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28776.

The product of its (nonzero) digits is 93312, while the sum is 47.

The square root of 120988919 is about 10999.4963066497. The cubic root of 120988919 is about 494.5936453529.

The spelling of 120988919 in words is "one hundred twenty million, nine hundred eighty-eight thousand, nine hundred nineteen".