1012203243 has 16 divisors (see below), whose sum is σ = 1500528640. Its totient is φ = 674366472.

The previous prime is 1012203229. The next prime is 1012203277. The reversal of 1012203243 is 3423022101.

It is not a de Polignac number, because 1012203243 - 2²¹ = 1010106091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012203943) 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, 33630 + ... + 56172.

It is an arithmetic number, because the mean of its divisors is an integer number (93783040).

Almost surely, 2^1012203243 is an apocalyptic number.

1012203243 is a deficient number, since it is larger than the sum of its proper divisors (488325397).

1012203243 is a wasteful number, since it uses less digits than its factorization.

1012203243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24215 (or 24209 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1012203243 is about 31815.1417252855. The cubic root of 1012203243 is about 1004.0513123698.

Adding to 1012203243 its reverse (3423022101), we get a palindrome (4435225344).

The spelling of 1012203243 in words is "one billion, twelve million, two hundred three thousand, two hundred forty-three".