1012323198 has 32 divisors (see below), whose sum is σ = 2044449792. Its totient is φ = 334152000.

The previous prime is 1012323187. The next prime is 1012323199. The reversal of 1012323198 is 8913232101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012323199) 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 15 ways as a sum of consecutive naturals, for example, 471315 + ... + 473457.

It is an arithmetic number, because the mean of its divisors is an integer number (63889056).

Almost surely, 2^1012323198 is an apocalyptic number.

1012323198 is an abundant number, since it is smaller than the sum of its proper divisors (1032126594).

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

1012323198 is a wasteful number, since it uses less digits than its factorization.

1012323198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 1012323198 is about 31817.0268567005. The cubic root of 1012323198 is about 1004.0909737779.

Adding to 1012323198 its reverse (8913232101), we get a palindrome (9925555299).

The spelling of 1012323198 in words is "one billion, twelve million, three hundred twenty-three thousand, one hundred ninety-eight".