120156276021601 has 4 divisors (see below), whose sum is σ = 120547664543152. Its totient is φ = 119764887500052.

The previous prime is 120156276021599. The next prime is 120156276021643. The reversal of 120156276021601 is 106120672651021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120156276021601 - 2¹ = 120156276021599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120156276021101) 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, 195694260315 + ... + 195694260928.

It is an arithmetic number, because the mean of its divisors is an integer number (30136916135788).

Almost surely, 2^{120156276021601} is an apocalyptic number.

It is an amenable number.

120156276021601 is a deficient number, since it is larger than the sum of its proper divisors (391388521551).

120156276021601 is an equidigital number, since it uses as much as digits as its factorization.

120156276021601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391388521550.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 120156276021601 in words is "one hundred twenty trillion, one hundred fifty-six billion, two hundred seventy-six million, twenty-one thousand, six hundred one".