120657546521401 has 4 divisors (see below), whose sum is σ = 127755049257972. Its totient is φ = 113560043784832.

The previous prime is 120657546521399. The next prime is 120657546521411. The reversal of 120657546521401 is 104125645756021.

It is a happy number.

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 79833420852025 + 40824125669376 = 8934955^2 + 6389376^2 .

It is a cyclic number.

It is not a de Polignac number, because 120657546521401 - 2¹ = 120657546521399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120657546521411) 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, 3548751368260 + ... + 3548751368293.

It is an arithmetic number, because the mean of its divisors is an integer number (31938762314493).

Almost surely, 2^{120657546521401} is an apocalyptic number.

It is an amenable number.

120657546521401 is a deficient number, since it is larger than the sum of its proper divisors (7097502736571).

120657546521401 is an equidigital number, since it uses as much as digits as its factorization.

120657546521401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7097502736570.

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 120657546521401 in words is "one hundred twenty trillion, six hundred fifty-seven billion, five hundred forty-six million, five hundred twenty-one thousand, four hundred one".