1023431190 has 64 divisors (see below), whose sum is σ = 2489978880. Its totient is φ = 269193600.

The previous prime is 1023431183. The next prime is 1023431191. The reversal of 1023431190 is 911343201.

1023431190 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1023431190² = 2094822801329632200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1023431190.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023431191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 710491 + ... + 711929.

It is an arithmetic number, because the mean of its divisors is an integer number (38905920).

Almost surely, 2^1023431190 is an apocalyptic number.

1023431190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1023431190 is an abundant number, since it is smaller than the sum of its proper divisors (1466547690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023431190 is a wasteful number, since it uses less digits than its factorization.

1023431190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1023431190 is about 31991.1111091816. Note that the first 4 decimals coincide. The cubic root of 1023431190 is about 1007.7501762625.

Adding to 1023431190 its reverse (911343201), we get a palindrome (1934774391).

The spelling of 1023431190 in words is "one billion, twenty-three million, four hundred thirty-one thousand, one hundred ninety".