1023132431 has 4 divisors (see below), whose sum is σ = 1028274000. Its totient is φ = 1017990864.

The previous prime is 1023132421. The next prime is 1023132433. The reversal of 1023132431 is 1342313201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1023132431 - 2¹⁸ = 1022870287 is a prime.

It is a super-2 number, since 2×1023132431² = 2093599942727939522, 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 (1023132433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2570486 + ... + 2570883.

It is an arithmetic number, because the mean of its divisors is an integer number (257068500).

Almost surely, 2^1023132431 is an apocalyptic number.

1023132431 is a deficient number, since it is larger than the sum of its proper divisors (5141569).

1023132431 is an equidigital number, since it uses as much as digits as its factorization.

1023132431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5141568.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1023132431 is about 31986.4413619271. The cubic root of 1023132431 is about 1007.6521062476.

Adding to 1023132431 its reverse (1342313201), we get a palindrome (2365445632).

The spelling of 1023132431 in words is "one billion, twenty-three million, one hundred thirty-two thousand, four hundred thirty-one".