1002311320123 has 4 divisors (see below), whose sum is σ = 1061270809560. Its totient is φ = 943351830688.

The previous prime is 1002311320117. The next prime is 1002311320141. The reversal of 1002311320123 is 3210231132001.

1002311320123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002311320123 - 2²⁵ = 1002277765691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002311320123.

It is not an unprimeable number, because it can be changed into a prime (1002311320183) 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, 29479744693 + ... + 29479744726.

It is an arithmetic number, because the mean of its divisors is an integer number (265317702390).

Almost surely, 2^{1002311320123} is an apocalyptic number.

1002311320123 is a deficient number, since it is larger than the sum of its proper divisors (58959489437).

1002311320123 is an equidigital number, since it uses as much as digits as its factorization.

1002311320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58959489436.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1002311320123 its reverse (3210231132001), we get a palindrome (4212542452124).

The spelling of 1002311320123 in words is "one trillion, two billion, three hundred eleven million, three hundred twenty thousand, one hundred twenty-three".