1013431 has 2 divisors, whose sum is σ = 1013432. Its totient is φ = 1013430.

The previous prime is 1013429. The next prime is 1013471. The reversal of 1013431 is 1343101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1013431 - 2¹ = 1013429 is a prime.

It is a super-2 number, since 2×1013431² = 2054084783522, which contains 22 as substring.

Together with 1013429, it forms a pair of twin primes.

1013431 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506715 + 506716.

It is an arithmetic number, because the mean of its divisors is an integer number (506716).

2^1013431 is an apocalyptic number.

1013431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013431 is an equidigital number, since it uses as much as digits as its factorization.

1013431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1013431 is about 1006.6931011982. The cubic root of 1013431 is about 100.4457104703.

Adding to 1013431 its reverse (1343101), we get a palindrome (2356532).

It can be divided in two parts, 1013 and 431, that added together give a square (1444 = 38²).

The spelling of 1013431 in words is "one million, thirteen thousand, four hundred thirty-one".