1233401234431 has 2 divisors, whose sum is σ = 1233401234432. Its totient is φ = 1233401234430.

The previous prime is 1233401234407. The next prime is 1233401234459. The reversal of 1233401234431 is 1344321043321.

It is a weak prime.

It is an emirp because it is prime and its reverse (1344321043321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1233401234431 - 2⁵ = 1233401234399 is a prime.

It is a super-2 number, since 2×1233401234431² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1233401234393 and 1233401234402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233401235431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616700617215 + 616700617216.

It is an arithmetic number, because the mean of its divisors is an integer number (616700617216).

Almost surely, 2^{1233401234431} is an apocalyptic number.

1233401234431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233401234431 is an equidigital number, since it uses as much as digits as its factorization.

1233401234431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 1233401234431 its reverse (1344321043321), we get a palindrome (2577722277752).

The spelling of 1233401234431 in words is "one trillion, two hundred thirty-three billion, four hundred one million, two hundred thirty-four thousand, four hundred thirty-one".