1011423243 has 16 divisors (see below), whose sum is σ = 1360010880. Its totient is φ = 668583936.

The previous prime is 1011423197. The next prime is 1011423247. The reversal of 1011423243 is 3423241101.

It is not a de Polignac number, because 1011423243 - 2¹⁰ = 1011422219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011423247) 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, 172128 + ... + 177906.

It is an arithmetic number, because the mean of its divisors is an integer number (85000680).

Almost surely, 2^1011423243 is an apocalyptic number.

1011423243 is a deficient number, since it is larger than the sum of its proper divisors (348587637).

1011423243 is a wasteful number, since it uses less digits than its factorization.

1011423243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6266.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1011423243 is about 31802.8810487352. The cubic root of 1011423243 is about 1003.7933400433.

Adding to 1011423243 its reverse (3423241101), we get a palindrome (4434664344).

The spelling of 1011423243 in words is "one billion, eleven million, four hundred twenty-three thousand, two hundred forty-three".