1996012231 has 2 divisors, whose sum is σ = 1996012232. Its totient is φ = 1996012230.

The previous prime is 1996012229. The next prime is 1996012237. The reversal of 1996012231 is 1322106991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1996012231 - 2¹ = 1996012229 is a prime.

It is a super-2 number, since 2×1996012231² = 7968129652603194722, which contains 22 as substring.

Together with 1996012229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1996012237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998006115 + 998006116.

It is an arithmetic number, because the mean of its divisors is an integer number (998006116).

Almost surely, 2^1996012231 is an apocalyptic number.

1996012231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996012231 is an equidigital number, since it uses as much as digits as its factorization.

1996012231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 1996012231 is about 44676.7526908570. The cubic root of 1996012231 is about 1259.0831137143.

The spelling of 1996012231 in words is "one billion, nine hundred ninety-six million, twelve thousand, two hundred thirty-one".