1101431 has 2 divisors, whose sum is σ = 1101432. Its totient is φ = 1101430.

The previous prime is 1101421. The next prime is 1101433. The reversal of 1101431 is 1341011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1101431 - 2¹⁴ = 1085047 is a prime.

It is a super-2 number, since 2×1101431² = 2426300495522, which contains 22 as substring.

Together with 1101433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550715 + 550716.

It is an arithmetic number, because the mean of its divisors is an integer number (550716).

2^1101431 is an apocalyptic number.

1101431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101431 is an equidigital number, since it uses as much as digits as its factorization.

1101431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1101431 is about 1049.4908289261. The cubic root of 1101431 is about 103.2727555682.

Adding to 1101431 its reverse (1341011), we get a palindrome (2442442).

The spelling of 1101431 in words is "one million, one hundred one thousand, four hundred thirty-one".