1202231312 has 10 divisors (see below), whose sum is σ = 2329323198. Its totient is φ = 601115648.

The previous prime is 1202231293. The next prime is 1202231333. The reversal of 1202231312 is 2131322021.

It can be written as a sum of positive squares in only one way, i.e., 875923216 + 326308096 = 29596^2 + 18064^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37569713 + ... + 37569744.

Almost surely, 2^1202231312 is an apocalyptic number.

It is an amenable number.

1202231312 is a deficient number, since it is larger than the sum of its proper divisors (1127091886).

1202231312 is an equidigital number, since it uses as much as digits as its factorization.

1202231312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75139465 (or 75139459 counting only the distinct ones).

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

The square root of 1202231312 is about 34673.2074086030. The cubic root of 1202231312 is about 1063.3168065967.

Adding to 1202231312 its reverse (2131322021), we get a palindrome (3333553333).

It can be divided in two parts, 12022 and 31312, that added together give a palindrome (43334).

The spelling of 1202231312 in words is "one billion, two hundred two million, two hundred thirty-one thousand, three hundred twelve".