1023113431 has 8 divisors (see below), whose sum is σ = 1103737104. Its totient is φ = 944760960.

The previous prime is 1023113389. The next prime is 1023113447. The reversal of 1023113431 is 1343113201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1023113431 - 2⁹ = 1023112919 is a prime.

It is a super-2 number, since 2×1023113431² = 2093522185385183522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1023113399 and 1023113408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023113831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566865 + ... + 568666.

It is an arithmetic number, because the mean of its divisors is an integer number (137967138).

Almost surely, 2^1023113431 is an apocalyptic number.

1023113431 is a deficient number, since it is larger than the sum of its proper divisors (80623673).

1023113431 is a wasteful number, since it uses less digits than its factorization.

1023113431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135601.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1023113431 is about 31986.1443597068. The cubic root of 1023113431 is about 1007.6458687011.

Adding to 1023113431 its reverse (1343113201), we get a palindrome (2366226632).

The spelling of 1023113431 in words is "one billion, twenty-three million, one hundred thirteen thousand, four hundred thirty-one".