21134001054 has 32 divisors (see below), whose sum is σ = 43121302560. Its totient is φ = 6903852032.

The previous prime is 21134001023. The next prime is 21134001089. The reversal of 21134001054 is 45010043112.

It is a super-2 number, since 2×21134001054² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21134001054.

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, 114777 + ... + 235460.

It is an arithmetic number, because the mean of its divisors is an integer number (1347540705).

Almost surely, 2^21134001054 is an apocalyptic number.

21134001054 is an abundant number, since it is smaller than the sum of its proper divisors (21987301506).

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

21134001054 is a wasteful number, since it uses less digits than its factorization.

21134001054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350444.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 21134001054 its reverse (45010043112), we get a palindrome (66144044166).

The spelling of 21134001054 in words is "twenty-one billion, one hundred thirty-four million, one thousand, fifty-four".