121292018393 has 8 divisors (see below), whose sum is σ = 149282484288. Its totient is φ = 95967311184.

The previous prime is 121292018389. The next prime is 121292018423. The reversal of 121292018393 is 393810292121.

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

It is a cyclic number.

It is not a de Polignac number, because 121292018393 - 2² = 121292018389 is a prime.

It is a super-3 number, since 3×121292018393³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121292018393.

It is not an unprimeable number, because it can be changed into a prime (121292018993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666439571 + ... + 666439752.

It is an arithmetic number, because the mean of its divisors is an integer number (18660310536).

Almost surely, 2^121292018393 is an apocalyptic number.

121292018393 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121292018393 is a deficient number, since it is larger than the sum of its proper divisors (27990465895).

121292018393 is a wasteful number, since it uses less digits than its factorization.

121292018393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332879343.

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 121292018393 in words is "one hundred twenty-one billion, two hundred ninety-two million, eighteen thousand, three hundred ninety-three".