120251551445 has 4 divisors (see below), whose sum is σ = 144301861740. Its totient is φ = 96201241152.

The previous prime is 120251551421. The next prime is 120251551457. The reversal of 120251551445 is 544155152021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 88421780164 + 31829771281 = 297358^2 + 178409^2 .

It is a cyclic number.

It is not a de Polignac number, because 120251551445 - 2¹⁶ = 120251485909 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12025155140 + ... + 12025155149.

It is an arithmetic number, because the mean of its divisors is an integer number (36075465435).

Almost surely, 2^120251551445 is an apocalyptic number.

It is an amenable number.

120251551445 is a deficient number, since it is larger than the sum of its proper divisors (24050310295).

120251551445 is an equidigital number, since it uses as much as digits as its factorization.

120251551445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24050310294.

The product of its (nonzero) digits is 40000, while the sum is 35.

The spelling of 120251551445 in words is "one hundred twenty billion, two hundred fifty-one million, five hundred fifty-one thousand, four hundred forty-five".