122403239501 has 2 divisors, whose sum is σ = 122403239502. Its totient is φ = 122403239500.

The previous prime is 122403239473. The next prime is 122403239509. The reversal of 122403239501 is 105932304221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122289390601 + 113848900 = 349699^2 + 10670^2 .

It is a cyclic number.

It is not a de Polignac number, because 122403239501 - 2⁶ = 122403239437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122403239509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61201619750 + 61201619751.

It is an arithmetic number, because the mean of its divisors is an integer number (61201619751).

Almost surely, 2^122403239501 is an apocalyptic number.

It is an amenable number.

122403239501 is a deficient number, since it is larger than the sum of its proper divisors (1).

122403239501 is an equidigital number, since it uses as much as digits as its factorization.

122403239501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 122403239501 in words is "one hundred twenty-two billion, four hundred three million, two hundred thirty-nine thousand, five hundred one".