1202312987 has 8 divisors (see below), whose sum is σ = 1232099232. Its totient is φ = 1172548800.

The previous prime is 1202312977. The next prime is 1202313011. The reversal of 1202312987 is 7892132021.

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

It is a cyclic number.

It is not a de Polignac number, because 1202312987 - 2¹⁴ = 1202296603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202312957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184037 + ... + 190457.

It is an arithmetic number, because the mean of its divisors is an integer number (154012404).

Almost surely, 2^1202312987 is an apocalyptic number.

1202312987 is a deficient number, since it is larger than the sum of its proper divisors (29786245).

1202312987 is an equidigital number, since it uses as much as digits as its factorization.

1202312987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11029.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 1202312987 is about 34674.3851711894. The cubic root of 1202312987 is about 1063.3408852779.

The spelling of 1202312987 in words is "one billion, two hundred two million, three hundred twelve thousand, nine hundred eighty-seven".