1002232310978 has 8 divisors (see below), whose sum is σ = 1520240022540. Its totient is φ = 495485636800.

The previous prime is 1002232310977. The next prime is 1002232310983. The reversal of 1002232310978 is 8790132322001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 895091964649 + 107140346329 = 946093^2 + 327323^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1002232310977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2815259123 + ... + 2815259478.

Almost surely, 2^{1002232310978} is an apocalyptic number.

1002232310978 is a deficient number, since it is larger than the sum of its proper divisors (518007711562).

1002232310978 is an equidigital number, since it uses as much as digits as its factorization.

1002232310978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5630518692.

The product of its (nonzero) digits is 36288, while the sum is 38.

Adding to 1002232310978 its reverse (8790132322001), we get a palindrome (9792364632979).

The spelling of 1002232310978 in words is "one trillion, two billion, two hundred thirty-two million, three hundred ten thousand, nine hundred seventy-eight".