1403340231 has 4 divisors (see below), whose sum is σ = 1871120312. Its totient is φ = 935560152.

The previous prime is 1403340199. The next prime is 1403340233. The reversal of 1403340231 is 1320433041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1320433041 = 3 ⋅440144347.

It is not a de Polignac number, because 1403340231 - 2⁵ = 1403340199 is a prime.

It is a super-2 number, since 2×1403340231² = 3938727607886266722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1403340198 and 1403340207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403340233) 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, 233890036 + ... + 233890041.

It is an arithmetic number, because the mean of its divisors is an integer number (467780078).

Almost surely, 2^1403340231 is an apocalyptic number.

1403340231 is a deficient number, since it is larger than the sum of its proper divisors (467780081).

1403340231 is an equidigital number, since it uses as much as digits as its factorization.

1403340231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467780080.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1403340231 is about 37461.1829898630. The cubic root of 1403340231 is about 1119.5779210483.

Adding to 1403340231 its reverse (1320433041), we get a palindrome (2723773272).

The spelling of 1403340231 in words is "one billion, four hundred three million, three hundred forty thousand, two hundred thirty-one".