121888057159 has 8 divisors (see below), whose sum is σ = 132993721728. Its totient is φ = 110786547960.

The previous prime is 121888057153. The next prime is 121888057171. The reversal of 121888057159 is 951750888121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121888057159 - 2¹⁷ = 121887926087 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 (121888057153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977347 + ... + 1094980.

It is an arithmetic number, because the mean of its divisors is an integer number (16624215216).

Almost surely, 2^121888057159 is an apocalyptic number.

121888057159 is a deficient number, since it is larger than the sum of its proper divisors (11105664569).

121888057159 is a wasteful number, since it uses less digits than its factorization.

121888057159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077685.

The product of its (nonzero) digits is 1612800, while the sum is 55.

The spelling of 121888057159 in words is "one hundred twenty-one billion, eight hundred eighty-eight million, fifty-seven thousand, one hundred fifty-nine".