121699113320 has 32 divisors (see below), whose sum is σ = 273834063720. Its totient is φ = 48677679360.

The previous prime is 121699113317. The next prime is 121699113353. The reversal of 121699113320 is 23311996121.

It can be written as a sum of positive squares in 4 ways, for example, as 43812350596 + 77886762724 = 209314^2 + 279082^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1330994 + ... + 1419486.

Almost surely, 2^121699113320 is an apocalyptic number.

121699113320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121699113320 is an abundant number, since it is smaller than the sum of its proper divisors (152134950400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121699113320 is a wasteful number, since it uses less digits than its factorization.

121699113320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122885 (or 122881 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 38.

The spelling of 121699113320 in words is "one hundred twenty-one billion, six hundred ninety-nine million, one hundred thirteen thousand, three hundred twenty".