21134146332 has 24 divisors (see below), whose sum is σ = 53106316816. Its totient is φ = 6502814208.

The previous prime is 21134146277. The next prime is 21134146333. The reversal of 21134146332 is 23364143112.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 21134146332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21134146333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67737493 + ... + 67737804.

Almost surely, 2^21134146332 is an apocalyptic number.

It is an amenable number.

21134146332 is an abundant number, since it is smaller than the sum of its proper divisors (31972170484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21134146332 is a wasteful number, since it uses less digits than its factorization.

21134146332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135475317 (or 135475315 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

Adding to 21134146332 its reverse (23364143112), we get a palindrome (44498289444).

The spelling of 21134146332 in words is "twenty-one billion, one hundred thirty-four million, one hundred forty-six thousand, three hundred thirty-two".