11402431 has 2 divisors, whose sum is σ = 11402432. Its totient is φ = 11402430.

The previous prime is 11402429. The next prime is 11402449. The reversal of 11402431 is 13420411.

11402431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11402431 - 2¹ = 11402429 is a prime.

It is a super-2 number, since 2×11402431² = 260030865419522, which contains 22 as substring.

Together with 11402429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11402471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5701215 + 5701216.

It is an arithmetic number, because the mean of its divisors is an integer number (5701216).

Almost surely, 2^11402431 is an apocalyptic number.

11402431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11402431 is an equidigital number, since it uses as much as digits as its factorization.

11402431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 11402431 is about 3376.7485840672. The cubic root of 11402431 is about 225.0777081383.

Adding to 11402431 its reverse (13420411), we get a palindrome (24822842).

The spelling of 11402431 in words is "eleven million, four hundred two thousand, four hundred thirty-one".