21102301342 has 32 divisors (see below), whose sum is σ = 32608300032. Its totient is φ = 10236409344.

The previous prime is 21102301321. The next prime is 21102301343. The reversal of 21102301342 is 24310320112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21102301343) 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, 11064753 + ... + 11066659.

It is an arithmetic number, because the mean of its divisors is an integer number (1019009376).

Almost surely, 2^21102301342 is an apocalyptic number.

21102301342 is a deficient number, since it is larger than the sum of its proper divisors (11505998690).

21102301342 is a wasteful number, since it uses less digits than its factorization.

21102301342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752.

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

Adding to 21102301342 its reverse (24310320112), we get a palindrome (45412621454).

The spelling of 21102301342 in words is "twenty-one billion, one hundred two million, three hundred one thousand, three hundred forty-two".