120311581375261 has 8 divisors (see below), whose sum is σ = 120503813750784. Its totient is φ = 120119501266800.

The previous prime is 120311581375231. The next prime is 120311581375277. The reversal of 120311581375261 is 162573185113021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120311581375261 - 2⁹ = 120311581374749 is a prime.

It is a super-2 number, since 2×120311581375261² (a number of 29 digits) 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 (120311581375231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36485181 + ... + 39645826.

It is an arithmetic number, because the mean of its divisors is an integer number (15062976718848).

Almost surely, 2^{120311581375261} is an apocalyptic number.

It is an amenable number.

120311581375261 is a deficient number, since it is larger than the sum of its proper divisors (192232375523).

120311581375261 is a wasteful number, since it uses less digits than its factorization.

120311581375261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76133531.

The product of its (nonzero) digits is 302400, while the sum is 46.

The spelling of 120311581375261 in words is "one hundred twenty trillion, three hundred eleven billion, five hundred eighty-one million, three hundred seventy-five thousand, two hundred sixty-one".