120189391253 has 4 divisors (see below), whose sum is σ = 120190116768. Its totient is φ = 120188665740.

The previous prime is 120189391249. The next prime is 120189391271. The reversal of 120189391253 is 352193981021.

It is a happy number.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 120189391253 - 2² = 120189391249 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 (120189391453) 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, 21200 + ... + 490742.

It is an arithmetic number, because the mean of its divisors is an integer number (30047529192).

Almost surely, 2^120189391253 is an apocalyptic number.

It is an amenable number.

120189391253 is a deficient number, since it is larger than the sum of its proper divisors (725515).

120189391253 is an equidigital number, since it uses as much as digits as its factorization.

120189391253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725514.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 120189391253 in words is "one hundred twenty billion, one hundred eighty-nine million, three hundred ninety-one thousand, two hundred fifty-three".