1131202340 has 12 divisors (see below), whose sum is σ = 2375524956. Its totient is φ = 452480928.

The previous prime is 1131202313. The next prime is 1131202367. The reversal of 1131202340 is 432021311.

It is an interprime number because it is at equal distance from previous prime (1131202313) and next prime (1131202367).

It can be written as a sum of positive squares in 2 ways, for example, as 773841124 + 357361216 = 27818^2 + 18904^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28280039 + ... + 28280078.

It is an arithmetic number, because the mean of its divisors is an integer number (197960413).

Almost surely, 2^1131202340 is an apocalyptic number.

1131202340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131202340 is an abundant number, since it is smaller than the sum of its proper divisors (1244322616).

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

1131202340 is a wasteful number, since it uses less digits than its factorization.

1131202340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56560126 (or 56560124 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1131202340 is about 33633.3516022415. The cubic root of 1131202340 is about 1041.9497263676.

Adding to 1131202340 its reverse (432021311), we get a palindrome (1563223651).

The spelling of 1131202340 in words is "one billion, one hundred thirty-one million, two hundred two thousand, three hundred forty".