1143121302 has 32 divisors (see below), whose sum is σ = 2541554400. Its totient is φ = 380847744.

The previous prime is 1143121297. The next prime is 1143121303. The reversal of 1143121302 is 2031213411.

It is a super-2 number, since 2×1143121302² = 2613452622172350408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143121303) 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, 137274 + ... + 145362.

It is an arithmetic number, because the mean of its divisors is an integer number (79423575).

Almost surely, 2^1143121302 is an apocalyptic number.

1143121302 is an abundant number, since it is smaller than the sum of its proper divisors (1398433098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143121302 is a wasteful number, since it uses less digits than its factorization.

1143121302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10717 (or 10711 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1143121302 is about 33810.0769298149. The cubic root of 1143121302 is about 1045.5964641989.

Adding to 1143121302 its reverse (2031213411), we get a palindrome (3174334713).

The spelling of 1143121302 in words is "one billion, one hundred forty-three million, one hundred twenty-one thousand, three hundred two".