120377577421 has 4 divisors (see below), whose sum is σ = 120500037792. Its totient is φ = 120255117052.

The previous prime is 120377577403. The next prime is 120377577461. The reversal of 120377577421 is 124775773021.

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 120377577421 - 2¹⁹ = 120377053133 is a prime.

It is a super-2 number, since 2×120377577421² (a number of 23 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 (120377577401) 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, 61228711 + ... + 61230676.

It is an arithmetic number, because the mean of its divisors is an integer number (30125009448).

Almost surely, 2^120377577421 is an apocalyptic number.

It is an amenable number.

120377577421 is a deficient number, since it is larger than the sum of its proper divisors (122460371).

120377577421 is an equidigital number, since it uses as much as digits as its factorization.

120377577421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122460370.

The product of its (nonzero) digits is 576240, while the sum is 46.

The spelling of 120377577421 in words is "one hundred twenty billion, three hundred seventy-seven million, five hundred seventy-seven thousand, four hundred twenty-one".