120820493379 has 16 divisors (see below), whose sum is σ = 161398033920. Its totient is φ = 80395061760.

The previous prime is 120820493377. The next prime is 120820493383. The reversal of 120820493379 is 973394028021.

It is not a de Polignac number, because 120820493379 - 2¹ = 120820493377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120820493377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6805987 + ... + 6823715.

It is an arithmetic number, because the mean of its divisors is an integer number (10087377120).

Almost surely, 2^120820493379 is an apocalyptic number.

120820493379 is a deficient number, since it is larger than the sum of its proper divisors (40577540541).

120820493379 is a wasteful number, since it uses less digits than its factorization.

120820493379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21890.

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 120820493379 in words is "one hundred twenty billion, eight hundred twenty million, four hundred ninety-three thousand, three hundred seventy-nine".