21142101332 has 12 divisors (see below), whose sum is σ = 40362193536. Its totient is φ = 9610046040.

The previous prime is 21142101319. The next prime is 21142101349. The reversal of 21142101332 is 23310124112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240251108 + ... + 240251195.

It is an arithmetic number, because the mean of its divisors is an integer number (3363516128).

Almost surely, 2^21142101332 is an apocalyptic number.

21142101332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21142101332 is a deficient number, since it is larger than the sum of its proper divisors (19220092204).

21142101332 is a wasteful number, since it uses less digits than its factorization.

21142101332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480502318 (or 480502316 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21142101332 its reverse (23310124112), we get a palindrome (44452225444).

The spelling of 21142101332 in words is "twenty-one billion, one hundred forty-two million, one hundred one thousand, three hundred thirty-two".