121713433 has 4 divisors (see below), whose sum is σ = 122830180. Its totient is φ = 120596688.

The previous prime is 121713419. The next prime is 121713457. The reversal of 121713433 is 334317121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31899904 + 89813529 = 5648^2 + 9477^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121713433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121713398 and 121713407.

It is not an unprimeable number, because it can be changed into a prime (121713233) 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, 558210 + ... + 558427.

It is an arithmetic number, because the mean of its divisors is an integer number (30707545).

Almost surely, 2^121713433 is an apocalyptic number.

It is an amenable number.

121713433 is a deficient number, since it is larger than the sum of its proper divisors (1116747).

121713433 is a wasteful number, since it uses less digits than its factorization.

121713433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116746.

The product of its digits is 1512, while the sum is 25.

The square root of 121713433 is about 11032.3811119812. The cubic root of 121713433 is about 495.5789342396.

The spelling of 121713433 in words is "one hundred twenty-one million, seven hundred thirteen thousand, four hundred thirty-three".