263103431 has 16 divisors (see below), whose sum is σ = 283716960. Its totient is φ = 243233280.

The previous prime is 263103419. The next prime is 263103433. The reversal of 263103431 is 134301362.

It is a cyclic number.

It is not a de Polignac number, because 263103431 - 2¹⁸ = 262841287 is a prime.

It is a super-2 number, since 2×263103431² = 138446830807943522, 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 = 263103397 and 263103406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263103433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157955 + ... + 159611.

It is an arithmetic number, because the mean of its divisors is an integer number (17732310).

Almost surely, 2^263103431 is an apocalyptic number.

263103431 is a deficient number, since it is larger than the sum of its proper divisors (20613529).

263103431 is a wasteful number, since it uses less digits than its factorization.

263103431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 263103431 is about 16220.4633411010. The cubic root of 263103431 is about 640.7798363346.

Adding to 263103431 its reverse (134301362), we get a palindrome (397404793).

The spelling of 263103431 in words is "two hundred sixty-three million, one hundred three thousand, four hundred thirty-one".