21133410142 has 32 divisors (see below), whose sum is σ = 34488115200. Its totient is φ = 9654179808.

The previous prime is 21133410119. The next prime is 21133410143. The reversal of 21133410142 is 24101433112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133410143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4000659 + ... + 4005937.

It is an arithmetic number, because the mean of its divisors is an integer number (1077753600).

Almost surely, 2^21133410142 is an apocalyptic number.

21133410142 is a deficient number, since it is larger than the sum of its proper divisors (13354705058).

21133410142 is a wasteful number, since it uses less digits than its factorization.

21133410142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6840.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21133410142 its reverse (24101433112), we get a palindrome (45234843254).

The spelling of 21133410142 in words is "twenty-one billion, one hundred thirty-three million, four hundred ten thousand, one hundred forty-two".