1051013263 has 4 divisors (see below), whose sum is σ = 1051142680. Its totient is φ = 1050883848.

The previous prime is 1051013239. The next prime is 1051013269. The reversal of 1051013263 is 3623101501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3623101501 = 9227 ⋅392663.

It is a cyclic number.

It is not a de Polignac number, because 1051013263 - 2²⁵ = 1017458831 is a prime.

It is a super-2 number, since 2×1051013263² = 2209257758003814338, 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 (1051013269) 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, 51648 + ... + 69061.

It is an arithmetic number, because the mean of its divisors is an integer number (262785670).

Almost surely, 2^1051013263 is an apocalyptic number.

1051013263 is a deficient number, since it is larger than the sum of its proper divisors (129417).

1051013263 is an equidigital number, since it uses as much as digits as its factorization.

1051013263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129416.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1051013263 is about 32419.3347093983. The cubic root of 1051013263 is about 1016.7231967253.

Adding to 1051013263 its reverse (3623101501), we get a palindrome (4674114764).

The spelling of 1051013263 in words is "one billion, fifty-one million, thirteen thousand, two hundred sixty-three".