21134233410 has 32 divisors (see below), whose sum is σ = 50901410880. Its totient is φ = 5615878848.

The previous prime is 21134233369. The next prime is 21134233453. The reversal of 21134233410 is 1433243112.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1236165 + ... + 1253144.

It is an arithmetic number, because the mean of its divisors is an integer number (1590669090).

Almost surely, 2^21134233410 is an apocalyptic number.

21134233410 is an abundant number, since it is smaller than the sum of its proper divisors (29767177470).

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

21134233410 is a wasteful number, since it uses less digits than its factorization.

21134233410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489602.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21134233410 its reverse (1433243112), we get a palindrome (22567476522).

The spelling of 21134233410 in words is "twenty-one billion, one hundred thirty-four million, two hundred thirty-three thousand, four hundred ten".