21232635411 has 16 divisors (see below), whose sum is σ = 30501008384. Its totient is φ = 13060613664.

The previous prime is 21232635383. The next prime is 21232635491. The reversal of 21232635411 is 11453623212.

It is not a de Polignac number, because 21232635411 - 2¹³ = 21232627219 is a prime.

It is a super-2 number, since 2×21232635411² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21232635491) 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, 24451 + ... + 207516.

It is an arithmetic number, because the mean of its divisors is an integer number (1906313024).

Almost surely, 2^21232635411 is an apocalyptic number.

21232635411 is a deficient number, since it is larger than the sum of its proper divisors (9268372973).

21232635411 is a wasteful number, since it uses less digits than its factorization.

21232635411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234330.

The product of its digits is 8640, while the sum is 30.

The spelling of 21232635411 in words is "twenty-one billion, two hundred thirty-two million, six hundred thirty-five thousand, four hundred eleven".