1231703 has 4 divisors (see below), whose sum is σ = 1343688. Its totient is φ = 1119720.

The previous prime is 1231697. The next prime is 1231709. The reversal of 1231703 is 3071321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3071321 = 11 ⋅279211.

It is an interprime number because it is at equal distance from previous prime (1231697) and next prime (1231709).

It is a cyclic number.

It is not a de Polignac number, because 1231703 - 2⁴ = 1231687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55976 + ... + 55997.

It is an arithmetic number, because the mean of its divisors is an integer number (335922).

2^1231703 is an apocalyptic number.

1231703 is a deficient number, since it is larger than the sum of its proper divisors (111985).

1231703 is a wasteful number, since it uses less digits than its factorization.

1231703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111984.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 1231703 is about 1109.8211567636. The cubic root of 1231703 is about 107.1935530670.

The spelling of 1231703 in words is "one million, two hundred thirty-one thousand, seven hundred three".