121173693 has 4 divisors (see below), whose sum is σ = 161564928. Its totient is φ = 80782460.

The previous prime is 121173677. The next prime is 121173707. The reversal of 121173693 is 396371121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121173693 - 2⁴ = 121173677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121173643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20195613 + ... + 20195618.

It is an arithmetic number, because the mean of its divisors is an integer number (40391232).

Almost surely, 2^121173693 is an apocalyptic number.

It is an amenable number.

121173693 is a deficient number, since it is larger than the sum of its proper divisors (40391235).

121173693 is an equidigital number, since it uses as much as digits as its factorization.

121173693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40391234.

The product of its digits is 6804, while the sum is 33.

The square root of 121173693 is about 11007.8923050691. The cubic root of 121173693 is about 494.8452980494.

The spelling of 121173693 in words is "one hundred twenty-one million, one hundred seventy-three thousand, six hundred ninety-three".