2121203123002 has 8 divisors (see below), whose sum is σ = 3241838735316. Its totient is φ = 1040590211232.

The previous prime is 2121203122999. The next prime is 2121203123003. The reversal of 2121203123002 is 2003213021212.

It can be written as a sum of positive squares in 2 ways, for example, as 2028599155521 + 92603967481 = 1424289^2 + 304309^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2121203123003) 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, 10005675003 + ... + 10005675214.

Almost surely, 2^{2121203123002} is an apocalyptic number.

2121203123002 is a deficient number, since it is larger than the sum of its proper divisors (1120635612314).

2121203123002 is a wasteful number, since it uses less digits than its factorization.

2121203123002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20011350272.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2121203123002 its reverse (2003213021212), we get a palindrome (4124416144214).

The spelling of 2121203123002 in words is "two trillion, one hundred twenty-one billion, two hundred three million, one hundred twenty-three thousand, two".