1202131240 has 16 divisors (see below), whose sum is σ = 2704795380. Its totient is φ = 480852480.

The previous prime is 1202131201. The next prime is 1202131253. The reversal of 1202131240 is 421312021.

It can be written as a sum of positive squares in 2 ways, for example, as 982320964 + 219810276 = 31342^2 + 14826^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15026601 + ... + 15026680.

Almost surely, 2^1202131240 is an apocalyptic number.

1202131240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202131240 is an abundant number, since it is smaller than the sum of its proper divisors (1502664140).

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

1202131240 is a wasteful number, since it uses less digits than its factorization.

1202131240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30053292 (or 30053288 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1202131240 is about 34671.7643046904. The cubic root of 1202131240 is about 1063.2873027924.

Adding to 1202131240 its reverse (421312021), we get a palindrome (1623443261).

The spelling of 1202131240 in words is "one billion, two hundred two million, one hundred thirty-one thousand, two hundred forty".