1002102321123 has 12 divisors (see below), whose sum is σ = 1453693498920. Its totient is φ = 665200967136.

The previous prime is 1002102321097. The next prime is 1002102321131. The reversal of 1002102321123 is 3211232012001.

1002102321123 is a `hidden beast` number, since 10 + 0 + 210 + 2 + 321 + 123 = 666.

It is not a de Polignac number, because 1002102321123 - 2³⁴ = 984922451939 is a prime.

It is a super-2 number, since 2×1002102321123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1002102321096 and 1002102321105.

It is not an unprimeable number, because it can be changed into a prime (1002102321133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238935033 + ... + 238939226.

It is an arithmetic number, because the mean of its divisors is an integer number (121141124910).

Almost surely, 2^{1002102321123} is an apocalyptic number.

1002102321123 is a deficient number, since it is larger than the sum of its proper divisors (451591177797).

1002102321123 is a wasteful number, since it uses less digits than its factorization.

1002102321123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477874498 (or 477874495 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1002102321123 its reverse (3211232012001), we get a palindrome (4213334333124).

The spelling of 1002102321123 in words is "one trillion, two billion, one hundred two million, three hundred twenty-one thousand, one hundred twenty-three".