21342151006 has 32 divisors (see below), whose sum is σ = 35041183200. Its totient is φ = 9668359680.

The previous prime is 21342150997. The next prime is 21342151043. The reversal of 21342151006 is 60015124312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11928760 + ... + 11930548.

It is an arithmetic number, because the mean of its divisors is an integer number (1095036975).

Almost surely, 2^21342151006 is an apocalyptic number.

21342151006 is a deficient number, since it is larger than the sum of its proper divisors (13699032194).

21342151006 is a wasteful number, since it uses less digits than its factorization.

21342151006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 21342151006 its reverse (60015124312), we get a palindrome (81357275318).

The spelling of 21342151006 in words is "twenty-one billion, three hundred forty-two million, one hundred fifty-one thousand, six".