11159431 has 2 divisors, whose sum is σ = 11159432. Its totient is φ = 11159430.

The previous prime is 11159419. The next prime is 11159501. The reversal of 11159431 is 13495111.

11159431 is digitally balanced in base 2, 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 11159431 - 2¹⁹ = 10635143 is a prime.

It is a super-2 number, since 2×11159431² = 249065800487522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11159396 and 11159405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11159131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5579715 + 5579716.

It is an arithmetic number, because the mean of its divisors is an integer number (5579716).

Almost surely, 2^11159431 is an apocalyptic number.

11159431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11159431 is an equidigital number, since it uses as much as digits as its factorization.

11159431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 25.

The square root of 11159431 is about 3340.5734537651. The cubic root of 11159431 is about 223.4673181813.

The spelling of 11159431 in words is "eleven million, one hundred fifty-nine thousand, four hundred thirty-one".