1023431304 has 64 divisors (see below), whose sum is σ = 2992112640. Its totient is φ = 285606720.

The previous prime is 1023431267. The next prime is 1023431317. The reversal of 1023431304 is 4031343201.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63612 + ... + 78059.

It is an arithmetic number, because the mean of its divisors is an integer number (46751760).

Almost surely, 2^1023431304 is an apocalyptic number.

1023431304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1023431304 is an abundant number, since it is smaller than the sum of its proper divisors (1968681336).

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

1023431304 is a wasteful number, since it uses less digits than its factorization.

1023431304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141730 (or 141726 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1023431304 is about 31991.1128909264. The cubic root of 1023431304 is about 1007.7502136803.

Adding to 1023431304 its reverse (4031343201), we get a palindrome (5054774505).

The spelling of 1023431304 in words is "one billion, twenty-three million, four hundred thirty-one thousand, three hundred four".