1012323399 has 16 divisors (see below), whose sum is σ = 1362296832. Its totient is φ = 668642688.

The previous prime is 1012323391. The next prime is 1012323409. The reversal of 1012323399 is 9933232101.

It is not a de Polignac number, because 1012323399 - 2³ = 1012323391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012323391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161722 + ... + 167864.

It is an arithmetic number, because the mean of its divisors is an integer number (85143552).

Almost surely, 2^1012323399 is an apocalyptic number.

1012323399 is a deficient number, since it is larger than the sum of its proper divisors (349973433).

1012323399 is a wasteful number, since it uses less digits than its factorization.

1012323399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6646.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 1012323399 is about 31817.0300153864. The cubic root of 1012323399 is about 1004.0910402331.

The spelling of 1012323399 in words is "one billion, twelve million, three hundred twenty-three thousand, three hundred ninety-nine".