1260431403 has 32 divisors (see below), whose sum is σ = 2126561280. Its totient is φ = 644988960.

The previous prime is 1260431399. The next prime is 1260431407. The reversal of 1260431403 is 3041340621.

It is an interprime number because it is at equal distance from previous prime (1260431399) and next prime (1260431407).

It is not a de Polignac number, because 1260431403 - 2² = 1260431399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1260431407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25243 + ... + 56196.

It is an arithmetic number, because the mean of its divisors is an integer number (66455040).

Almost surely, 2^1260431403 is an apocalyptic number.

1260431403 is a deficient number, since it is larger than the sum of its proper divisors (866129877).

1260431403 is a wasteful number, since it uses less digits than its factorization.

1260431403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81527.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1260431403 is about 35502.5548798956. The cubic root of 1260431403 is about 1080.2055515822.

The spelling of 1260431403 in words is "one billion, two hundred sixty million, four hundred thirty-one thousand, four hundred three".