121603792323 has 12 divisors (see below), whose sum is σ = 175569973080. Its totient is φ = 74833102656.

The previous prime is 121603792313. The next prime is 121603792337. The reversal of 121603792323 is 323297306121.

It is not a de Polignac number, because 121603792323 - 2⁶ = 121603792259 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (121603792313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119924338 + ... + 119925351.

It is an arithmetic number, because the mean of its divisors is an integer number (14630831090).

Almost surely, 2^121603792323 is an apocalyptic number.

121603792323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121603792323 is a deficient number, since it is larger than the sum of its proper divisors (53966180757).

121603792323 is a wasteful number, since it uses less digits than its factorization.

121603792323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239849718 (or 239849705 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 39.

The spelling of 121603792323 in words is "one hundred twenty-one billion, six hundred three million, seven hundred ninety-two thousand, three hundred twenty-three".