1403142431 has 4 divisors (see below), whose sum is σ = 1407381864. Its totient is φ = 1398903000.

The previous prime is 1403142427. The next prime is 1403142443. The reversal of 1403142431 is 1342413041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1342413041 = 17 ⋅78965473.

It is a cyclic number.

It is not a de Polignac number, because 1403142431 - 2² = 1403142427 is a prime.

It is a super-2 number, since 2×1403142431² = 3937617363345179522, 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 = 1403142397 and 1403142406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403142401) 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, 2119220 + ... + 2119881.

It is an arithmetic number, because the mean of its divisors is an integer number (351845466).

Almost surely, 2^1403142431 is an apocalyptic number.

1403142431 is a deficient number, since it is larger than the sum of its proper divisors (4239433).

1403142431 is an equidigital number, since it uses as much as digits as its factorization.

1403142431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4239432.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1403142431 is about 37458.5428307082. The cubic root of 1403142431 is about 1119.5253172883.

Adding to 1403142431 its reverse (1342413041), we get a palindrome (2745555472).

The spelling of 1403142431 in words is "one billion, four hundred three million, one hundred forty-two thousand, four hundred thirty-one".