120651732149 has 4 divisors (see below), whose sum is σ = 129932634636. Its totient is φ = 111370829664.

The previous prime is 120651732139. The next prime is 120651732151. The reversal of 120651732149 is 941237156021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 941237156021 = 1291 ⋅729076031.

It can be written as a sum of positive squares in 2 ways, for example, as 79527948049 + 41123784100 = 282007^2 + 202790^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120651732149 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 (120651732139) 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, 4640451224 + ... + 4640451249.

It is an arithmetic number, because the mean of its divisors is an integer number (32483158659).

Almost surely, 2^120651732149 is an apocalyptic number.

It is an amenable number.

120651732149 is a deficient number, since it is larger than the sum of its proper divisors (9280902487).

120651732149 is an equidigital number, since it uses as much as digits as its factorization.

120651732149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9280902486.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 120651732149 in words is "one hundred twenty billion, six hundred fifty-one million, seven hundred thirty-two thousand, one hundred forty-nine".