1012351243 has 2 divisors, whose sum is σ = 1012351244. Its totient is φ = 1012351242.

The previous prime is 1012351231. The next prime is 1012351271. The reversal of 1012351243 is 3421532101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012351243 - 2⁵ = 1012351211 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012351943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506175621 + 506175622.

It is an arithmetic number, because the mean of its divisors is an integer number (506175622).

Almost surely, 2^1012351243 is an apocalyptic number.

1012351243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012351243 is an equidigital number, since it uses as much as digits as its factorization.

1012351243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1012351243 is about 31817.4675767887. The cubic root of 1012351243 is about 1004.1002460049.

Adding to 1012351243 its reverse (3421532101), we get a palindrome (4433883344).

The spelling of 1012351243 in words is "one billion, twelve million, three hundred fifty-one thousand, two hundred forty-three".