1002123023312 has 20 divisors (see below), whose sum is σ = 2055825908676. Its totient is φ = 471587304960.

The previous prime is 1002123023281. The next prime is 1002123023347. The reversal of 1002123023312 is 2133203212001.

It can be written as a sum of positive squares in 2 ways, for example, as 739696323136 + 262426700176 = 860056^2 + 512276^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1842137639 + ... + 1842138182.

Almost surely, 2^{1002123023312} is an apocalyptic number.

It is an amenable number.

1002123023312 is an abundant number, since it is smaller than the sum of its proper divisors (1053702885364).

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

1002123023312 is a wasteful number, since it uses less digits than its factorization.

1002123023312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684275846 (or 3684275840 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1002123023312 its reverse (2133203212001), we get a palindrome (3135326235313).

The spelling of 1002123023312 in words is "one trillion, two billion, one hundred twenty-three million, twenty-three thousand, three hundred twelve".