1131232402 has 8 divisors (see below), whose sum is σ = 1703609712. Its totient is φ = 563362500.

The previous prime is 1131232369. The next prime is 1131232409. The reversal of 1131232402 is 2042321311.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1131232402.

It is not an unprimeable number, because it can be changed into a prime (1131232409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1126224 + ... + 1127227.

It is an arithmetic number, because the mean of its divisors is an integer number (212951214).

Almost surely, 2^1131232402 is an apocalyptic number.

1131232402 is a deficient number, since it is larger than the sum of its proper divisors (572377310).

1131232402 is a wasteful number, since it uses less digits than its factorization.

1131232402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253704.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1131232402 is about 33633.7985068591. The cubic root of 1131232402 is about 1041.9589563153.

Adding to 1131232402 its reverse (2042321311), we get a palindrome (3173553713).

The spelling of 1131232402 in words is "one billion, one hundred thirty-one million, two hundred thirty-two thousand, four hundred two".