121131895593 has 16 divisors (see below), whose sum is σ = 172468108800. Its totient is φ = 75454794240.

The previous prime is 121131895579. The next prime is 121131895631. The reversal of 121131895593 is 395598131121.

It is a happy number.

It is not a de Polignac number, because 121131895593 - 2⁶ = 121131895529 is a prime.

It is a super-2 number, since 2×121131895593² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121131895553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22454088 + ... + 22459481.

It is an arithmetic number, because the mean of its divisors is an integer number (10779256800).

Almost surely, 2^121131895593 is an apocalyptic number.

It is an amenable number.

121131895593 is a deficient number, since it is larger than the sum of its proper divisors (51336213207).

121131895593 is a wasteful number, since it uses less digits than its factorization.

121131895593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44913632.

The product of its digits is 291600, while the sum is 48.

The spelling of 121131895593 in words is "one hundred twenty-one billion, one hundred thirty-one million, eight hundred ninety-five thousand, five hundred ninety-three".