122406312403 has 2 divisors, whose sum is σ = 122406312404. Its totient is φ = 122406312402.

The previous prime is 122406312359. The next prime is 122406312433. The reversal of 122406312403 is 304213604221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122406312403 - 2³³ = 113816377811 is a prime.

It is a super-2 number, since 2×122406312403² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122406312433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61203156201 + 61203156202.

It is an arithmetic number, because the mean of its divisors is an integer number (61203156202).

Almost surely, 2^122406312403 is an apocalyptic number.

122406312403 is a deficient number, since it is larger than the sum of its proper divisors (1).

122406312403 is an equidigital number, since it uses as much as digits as its factorization.

122406312403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 122406312403 its reverse (304213604221), we get a palindrome (426619916624).

The spelling of 122406312403 in words is "one hundred twenty-two billion, four hundred six million, three hundred twelve thousand, four hundred three".