121357433 has 2 divisors, whose sum is σ = 121357434. Its totient is φ = 121357432.

The previous prime is 121357409. The next prime is 121357451. The reversal of 121357433 is 334753121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107910544 + 13446889 = 10388^2 + 3667^2 .

It is a cyclic number.

It is not a de Polignac number, because 121357433 - 2¹⁶ = 121291897 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121357396 and 121357405.

It is not a weakly prime, because it can be changed into another prime (121357493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60678716 + 60678717.

It is an arithmetic number, because the mean of its divisors is an integer number (60678717).

Almost surely, 2^121357433 is an apocalyptic number.

It is an amenable number.

121357433 is a deficient number, since it is larger than the sum of its proper divisors (1).

121357433 is an equidigital number, since it uses as much as digits as its factorization.

121357433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 29.

The square root of 121357433 is about 11016.2349738919. The cubic root of 121357433 is about 495.0952889370.

The spelling of 121357433 in words is "one hundred twenty-one million, three hundred fifty-seven thousand, four hundred thirty-three".