1002243123 has 24 divisors (see below), whose sum is σ = 1655736576. Its totient is φ = 572281200.

The previous prime is 1002243049. The next prime is 1002243131. The reversal of 1002243123 is 3213422001.

It is not a de Polignac number, because 1002243123 - 2¹⁶ = 1002177587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002243096 and 1002243105.

It is not an unprimeable number, because it can be changed into a prime (1002243133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91258 + ... + 101648.

It is an arithmetic number, because the mean of its divisors is an integer number (68989024).

Almost surely, 2^1002243123 is an apocalyptic number.

1002243123 is a deficient number, since it is larger than the sum of its proper divisors (653493453).

1002243123 is a wasteful number, since it uses less digits than its factorization.

1002243123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11935 (or 11932 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1002243123 is about 31658.2236235705. The cubic root of 1002243123 is about 1000.7471492956.

Adding to 1002243123 its reverse (3213422001), we get a palindrome (4215665124).

The spelling of 1002243123 in words is "one billion, two million, two hundred forty-three thousand, one hundred twenty-three".