21010233120003 has 12 divisors (see below), whose sum is σ = 30368745467008. Its totient is φ = 13997300098320.

The previous prime is 21010233119987. The next prime is 21010233120007. The reversal of 21010233120003 is 30002133201012.

21010233120003 is a `hidden beast` number, since 210 + 102 + 331 + 20 + 0 + 0 + 3 = 666.

It is not a de Polignac number, because 21010233120003 - 2⁴ = 21010233119987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21010233120007) 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, 793484500 + ... + 793510977.

Almost surely, 2^{21010233120003} is an apocalyptic number.

21010233120003 is a deficient number, since it is larger than the sum of its proper divisors (9358512347005).

21010233120003 is a wasteful number, since it uses less digits than its factorization.

21010233120003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586996954 (or 1586996951 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21010233120003 its reverse (30002133201012), we get a palindrome (51012366321015).

The spelling of 21010233120003 in words is "twenty-one trillion, ten billion, two hundred thirty-three million, one hundred twenty thousand, three".