1202040312 has 64 divisors (see below), whose sum is σ = 3366921600. Its totient is φ = 354407040.

The previous prime is 1202040253. The next prime is 1202040317. The reversal of 1202040312 is 2130402021.

It is a junction number, because it is equal to n+sod(n) for n = 1202040291 and 1202040300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202040317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51762 + ... + 71297.

It is an arithmetic number, because the mean of its divisors is an integer number (52608150).

Almost surely, 2^1202040312 is an apocalyptic number.

1202040312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1202040312 is an abundant number, since it is smaller than the sum of its proper divisors (2164881288).

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

1202040312 is a wasteful number, since it uses less digits than its factorization.

1202040312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123116 (or 123112 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1202040312 is about 34670.4530111736. The cubic root of 1202040312 is about 1063.2604934551.

Adding to 1202040312 its reverse (2130402021), we get a palindrome (3332442333).

The spelling of 1202040312 in words is "one billion, two hundred two million, forty thousand, three hundred twelve".