121363057 has 12 divisors (see below), whose sum is σ = 128373660. Its totient is φ = 114558080.

The previous prime is 121363049. The next prime is 121363087. The reversal of 121363057 is 750363121.

It can be written as a sum of positive squares in 6 ways, for example, as 11029041 + 110334016 = 3321^2 + 10504^2 .

It is not a de Polignac number, because 121363057 - 2³ = 121363049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121363007) 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 11 ways as a sum of consecutive naturals, for example, 431757 + ... + 432037.

It is an arithmetic number, because the mean of its divisors is an integer number (10697805).

Almost surely, 2^121363057 is an apocalyptic number.

It is an amenable number.

121363057 is a deficient number, since it is larger than the sum of its proper divisors (7010603).

121363057 is an frugal number, since it uses more digits than its factorization.

121363057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 121363057 is about 11016.4902305589. The cubic root of 121363057 is about 495.1029367940.

The spelling of 121363057 in words is "one hundred twenty-one million, three hundred sixty-three thousand, fifty-seven".