120251102432345 has 4 divisors (see below), whose sum is σ = 144301322918820. Its totient is φ = 96200881945872.

The previous prime is 120251102432341. The next prime is 120251102432389. The reversal of 120251102432345 is 543234201152021.

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 69462290035216 + 50788812397129 = 8334404^2 + 7126627^2 .

It is a cyclic number.

It is not a de Polignac number, because 120251102432345 - 2² = 120251102432341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120251102432341) 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, 12025110243230 + ... + 12025110243239.

It is an arithmetic number, because the mean of its divisors is an integer number (36075330729705).

Almost surely, 2^{120251102432345} is an apocalyptic number.

It is an amenable number.

120251102432345 is a deficient number, since it is larger than the sum of its proper divisors (24050220486475).

120251102432345 is an equidigital number, since it uses as much as digits as its factorization.

120251102432345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24050220486474.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 120251102432345 its reverse (543234201152021), we get a palindrome (663485303584366).

The spelling of 120251102432345 in words is "one hundred twenty trillion, two hundred fifty-one billion, one hundred two million, four hundred thirty-two thousand, three hundred forty-five".