1043401431 has 4 divisors (see below), whose sum is σ = 1391201912. Its totient is φ = 695600952.

The previous prime is 1043401423. The next prime is 1043401439. The reversal of 1043401431 is 1341043401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1341043401 = 3 ⋅447014467.

It is an interprime number because it is at equal distance from previous prime (1043401423) and next prime (1043401439).

It is not a de Polignac number, because 1043401431 - 2³ = 1043401423 is a prime.

It is a super-2 number, since 2×1043401431² = 2177373092425695522, 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 = 1043401398 and 1043401407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043401439) 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, 173900236 + ... + 173900241.

It is an arithmetic number, because the mean of its divisors is an integer number (347800478).

Almost surely, 2^1043401431 is an apocalyptic number.

1043401431 is a deficient number, since it is larger than the sum of its proper divisors (347800481).

1043401431 is an equidigital number, since it uses as much as digits as its factorization.

1043401431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347800480.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1043401431 is about 32301.7248920240. The cubic root of 1043401431 is about 1014.2627504772.

Adding to 1043401431 its reverse (1341043401), we get a palindrome (2384444832).

The spelling of 1043401431 in words is "one billion, forty-three million, four hundred one thousand, four hundred thirty-one".