120949271477 has 4 divisors (see below), whose sum is σ = 121451135916. Its totient is φ = 120447407040.

The previous prime is 120949271467. The next prime is 120949271497. The reversal of 120949271477 is 774172949021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 774172949021 = 563 ⋅1375085167.

It can be written as a sum of positive squares in 2 ways, for example, as 111850782481 + 9098488996 = 334441^2 + 95386^2 .

It is a cyclic number.

It is not a de Polignac number, because 120949271477 - 2¹² = 120949267381 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 (120949271437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250931858 + ... + 250932339.

It is an arithmetic number, because the mean of its divisors is an integer number (30362783979).

Almost surely, 2^120949271477 is an apocalyptic number.

It is an amenable number.

120949271477 is a deficient number, since it is larger than the sum of its proper divisors (501864439).

120949271477 is an equidigital number, since it uses as much as digits as its factorization.

120949271477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501864438.

The product of its (nonzero) digits is 1778112, while the sum is 53.

The spelling of 120949271477 in words is "one hundred twenty billion, nine hundred forty-nine million, two hundred seventy-one thousand, four hundred seventy-seven".