21043130233010 has 16 divisors (see below), whose sum is σ = 37884287891736. Its totient is φ = 8415773543808.

The previous prime is 21043130232967. The next prime is 21043130233067. The reversal of 21043130233010 is 1033203134012.

It can be written as a sum of positive squares in 4 ways, for example, as 13880222030689 + 7162908202321 = 3725617^2 + 2676361^2 .

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, 184758899 + ... + 184872758.

Almost surely, 2^{21043130233010} is an apocalyptic number.

21043130233010 is a deficient number, since it is larger than the sum of its proper divisors (16841157658726).

21043130233010 is a wasteful number, since it uses less digits than its factorization.

21043130233010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369637357.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21043130233010 its reverse (1033203134012), we get a palindrome (22076333367022).

The spelling of 21043130233010 in words is "twenty-one trillion, forty-three billion, one hundred thirty million, two hundred thirty-three thousand, ten".