1121323312002 has 32 divisors (see below), whose sum is σ = 2315051979264. Its totient is φ = 361707523200.

The previous prime is 1121323312001. The next prime is 1121323312003. The reversal of 1121323312002 is 2002133231211.

It is an interprime number because it is at equal distance from previous prime (1121323312001) and next prime (1121323312003).

It is a self number, because there is not a number n which added to its sum of digits gives 1121323312002.

It is not an unprimeable number, because it can be changed into a prime (1121323312001) 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, 10908148 + ... + 11010464.

It is an arithmetic number, because the mean of its divisors is an integer number (72345374352).

Almost surely, 2^{1121323312002} is an apocalyptic number.

1121323312002 is an abundant number, since it is smaller than the sum of its proper divisors (1193728667262).

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

1121323312002 is a wasteful number, since it uses less digits than its factorization.

1121323312002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161274.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1121323312002 its reverse (2002133231211), we get a palindrome (3123456543213).

The spelling of 1121323312002 in words is "one trillion, one hundred twenty-one billion, three hundred twenty-three million, three hundred twelve thousand, two".