1023031263 has 16 divisors (see below), whose sum is σ = 1373363552. Its totient is φ = 677376000.

The previous prime is 1023031223. The next prime is 1023031333. The reversal of 1023031263 is 3621303201.

It is not a de Polignac number, because 1023031263 - 2⁶ = 1023031199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023031213) 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, 302703 + ... + 306063.

It is an arithmetic number, because the mean of its divisors is an integer number (85835222).

Almost surely, 2^1023031263 is an apocalyptic number.

1023031263 is a deficient number, since it is larger than the sum of its proper divisors (350332289).

1023031263 is a wasteful number, since it uses less digits than its factorization.

1023031263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4026.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1023031263 is about 31984.8599027727. The cubic root of 1023031263 is about 1007.6188927211.

Adding to 1023031263 its reverse (3621303201), we get a palindrome (4644334464).

It can be divided in two parts, 102303 and 1263, that multiplied together give a square (129208689 = 11367²).

The spelling of 1023031263 in words is "one billion, twenty-three million, thirty-one thousand, two hundred sixty-three".