1012323431 has 8 divisors (see below), whose sum is σ = 1157136384. Its totient is φ = 867559320.

The previous prime is 1012323421. The next prime is 1012323437. The reversal of 1012323431 is 1343232101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012323431 is a prime.

It is a super-2 number, since 2×1012323431² = 2049597457903223522, 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 (1012323437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63626 + ... + 77928.

It is an arithmetic number, because the mean of its divisors is an integer number (144642048).

Almost surely, 2^1012323431 is an apocalyptic number.

1012323431 is a deficient number, since it is larger than the sum of its proper divisors (144812953).

1012323431 is a wasteful number, since it uses less digits than its factorization.

1012323431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24421.

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

The square root of 1012323431 is about 31817.0305182618. The cubic root of 1012323431 is about 1004.0910508130.

Adding to 1012323431 its reverse (1343232101), we get a palindrome (2355555532).

The spelling of 1012323431 in words is "one billion, twelve million, three hundred twenty-three thousand, four hundred thirty-one".