121609190733 has 8 divisors (see below), whose sum is σ = 162232723296. Its totient is φ = 81029226000.

The previous prime is 121609190639. The next prime is 121609190803. The reversal of 121609190733 is 337091906121.

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

It is not a de Polignac number, because 121609190733 - 2²⁴ = 121592413517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121609390733) 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, 10885443 + ... + 10896608.

It is an arithmetic number, because the mean of its divisors is an integer number (20279090412).

Almost surely, 2^121609190733 is an apocalyptic number.

It is an amenable number.

121609190733 is a deficient number, since it is larger than the sum of its proper divisors (40623532563).

121609190733 is a wasteful number, since it uses less digits than its factorization.

121609190733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21783915.

The product of its (nonzero) digits is 61236, while the sum is 42.

The spelling of 121609190733 in words is "one hundred twenty-one billion, six hundred nine million, one hundred ninety thousand, seven hundred thirty-three".