121353296164 has 27 divisors (see below), whose sum is σ = 222032442513. Its totient is φ = 58030869072.

The previous prime is 121353296143. The next prime is 121353296201. The reversal of 121353296164 is 461692353121.

The square root of 121353296164 is 348358.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 121097040100 + 256256064 = 347990^2 + 16008^2 .

It is a super-2 number, since 2×121353296164² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121353296164.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16020682 + ... + 16028254.

Almost surely, 2^121353296164 is an apocalyptic number.

121353296164 is the 348358-th square number.

It is an amenable number.

121353296164 is a deficient number, since it is larger than the sum of its proper divisors (100679146349).

121353296164 is an frugal number, since it uses more digits than its factorization.

121353296164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15196 (or 7598 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The spelling of 121353296164 in words is "one hundred twenty-one billion, three hundred fifty-three million, two hundred ninety-six thousand, one hundred sixty-four".