1403231231 has 8 divisors (see below), whose sum is σ = 1408414464. Its totient is φ = 1398058200.

The previous prime is 1403231171. The next prime is 1403231239. The reversal of 1403231231 is 1321323041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1403231231 is a prime.

It is a super-2 number, since 2×1403231231² = 3938115775307550722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403231239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362456 + ... + 366306.

It is an arithmetic number, because the mean of its divisors is an integer number (176051808).

Almost surely, 2^1403231231 is an apocalyptic number.

1403231231 is a deficient number, since it is larger than the sum of its proper divisors (5183233).

1403231231 is an equidigital number, since it uses as much as digits as its factorization.

1403231231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1403231231 is about 37459.7281223449. The cubic root of 1403231231 is about 1119.5489337435.

Adding to 1403231231 its reverse (1321323041), we get a palindrome (2724554272).

The spelling of 1403231231 in words is "one billion, four hundred three million, two hundred thirty-one thousand, two hundred thirty-one".