1131233202 has 80 divisors (see below), whose sum is σ = 2804497344. Its totient is φ = 337932000.

The previous prime is 1131233197. The next prime is 1131233209. The reversal of 1131233202 is 2023321311.

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

It is not an unprimeable number, because it can be changed into a prime (1131233209) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 122052 + ... + 130992.

Almost surely, 2^1131233202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131233202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1402248672).

1131233202 is an abundant number, since it is smaller than the sum of its proper divisors (1673264142).

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

1131233202 is a wasteful number, since it uses less digits than its factorization.

1131233202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9037 (or 9028 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1131233202 is about 33633.8103996559. The cubic root of 1131233202 is about 1041.9592019373.

Adding to 1131233202 its reverse (2023321311), we get a palindrome (3154554513).

It can be divided in two parts, 11 and 31233202, that added together give a palindrome (31233213).

The spelling of 1131233202 in words is "one billion, one hundred thirty-one million, two hundred thirty-three thousand, two hundred two".