120397774381 has 2 divisors, whose sum is σ = 120397774382. Its totient is φ = 120397774380.

The previous prime is 120397774319. The next prime is 120397774429. The reversal of 120397774381 is 183477793021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103984321156 + 16413453225 = 322466^2 + 128115^2 .

It is a cyclic number.

It is not a de Polignac number, because 120397774381 - 2⁷ = 120397774253 is a prime.

It is a super-2 number, since 2×120397774381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120397774681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60198887190 + 60198887191.

It is an arithmetic number, because the mean of its divisors is an integer number (60198887191).

Almost surely, 2^120397774381 is an apocalyptic number.

It is an amenable number.

120397774381 is a deficient number, since it is larger than the sum of its proper divisors (1).

120397774381 is an equidigital number, since it uses as much as digits as its factorization.

120397774381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The spelling of 120397774381 in words is "one hundred twenty billion, three hundred ninety-seven million, seven hundred seventy-four thousand, three hundred eighty-one".