1229502431 has 2 divisors, whose sum is σ = 1229502432. Its totient is φ = 1229502430.

The previous prime is 1229502409. The next prime is 1229502433. The reversal of 1229502431 is 1342059221.

It is a strong prime.

It is an emirp because it is prime and its reverse (1342059221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1229502431 - 2¹⁰ = 1229501407 is a prime.

It is a super-2 number, since 2×1229502431² = 3023352455669819522, which contains 22 as substring.

Together with 1229502433, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1229502394 and 1229502403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1229502433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614751215 + 614751216.

It is an arithmetic number, because the mean of its divisors is an integer number (614751216).

Almost surely, 2^1229502431 is an apocalyptic number.

1229502431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229502431 is an equidigital number, since it uses as much as digits as its factorization.

1229502431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1229502431 is about 35064.2614495158. The cubic root of 1229502431 is about 1071.2967743347.

The spelling of 1229502431 in words is "one billion, two hundred twenty-nine million, five hundred two thousand, four hundred thirty-one".