1142521203 has 8 divisors (see below), whose sum is σ = 1534321600. Its totient is φ = 756200808.

The previous prime is 1142521201. The next prime is 1142521229. The reversal of 1142521203 is 3021252411.

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

It is not a de Polignac number, because 1142521203 - 2¹ = 1142521201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1142521203.

It is not an unprimeable number, because it can be changed into a prime (1142521201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1369513 + ... + 1370346.

It is an arithmetic number, because the mean of its divisors is an integer number (191790200).

Almost surely, 2^1142521203 is an apocalyptic number.

1142521203 is a deficient number, since it is larger than the sum of its proper divisors (391800397).

1142521203 is a wasteful number, since it uses less digits than its factorization.

1142521203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740001.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1142521203 is about 33801.2012064660. The cubic root of 1142521203 is about 1045.4134648905.

Adding to 1142521203 its reverse (3021252411), we get a palindrome (4163773614).

The spelling of 1142521203 in words is "one billion, one hundred forty-two million, five hundred twenty-one thousand, two hundred three".