21233123002 has 16 divisors (see below), whose sum is σ = 39199612032. Its totient is φ = 8399916720.

The previous prime is 21233122987. The next prime is 21233123047. The reversal of 21233123002 is 20032133212.

It is a super-2 number, since 2×21233123002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58332574 + ... + 58332937.

It is an arithmetic number, because the mean of its divisors is an integer number (2449975752).

Almost surely, 2^21233123002 is an apocalyptic number.

21233123002 is a deficient number, since it is larger than the sum of its proper divisors (17966489030).

21233123002 is a wasteful number, since it uses less digits than its factorization.

21233123002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116665533.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21233123002 its reverse (20032133212), we get a palindrome (41265256214).

The spelling of 21233123002 in words is "twenty-one billion, two hundred thirty-three million, one hundred twenty-three thousand, two".