21167411034 has 32 divisors (see below), whose sum is σ = 52781078016. Its totient is φ = 5498028720.

The previous prime is 21167411033. The next prime is 21167411051. The reversal of 21167411034 is 43011476112.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21167410992 and 21167411010.

It is not an unprimeable number, because it can be changed into a prime (21167411033) 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, 22907992 + ... + 22908915.

It is an arithmetic number, because the mean of its divisors is an integer number (1649408688).

Almost surely, 2^21167411034 is an apocalyptic number.

21167411034 is an abundant number, since it is smaller than the sum of its proper divisors (31613666982).

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

21167411034 is a wasteful number, since it uses less digits than its factorization.

21167411034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45816930.

The product of its (nonzero) digits is 4032, while the sum is 30.

Adding to 21167411034 its reverse (43011476112), we get a palindrome (64178887146).

The spelling of 21167411034 in words is "twenty-one billion, one hundred sixty-seven million, four hundred eleven thousand, thirty-four".