21344111034 has 32 divisors (see below), whose sum is σ = 44659835136. Its totient is φ = 6793486080.

The previous prime is 21344111029. The next prime is 21344111039. The reversal of 21344111034 is 43011144312.

It is an interprime number because it is at equal distance from previous prime (21344111029) and next prime (21344111039).

It is a junction number, because it is equal to n+sod(n) for n = 21344110995 and 21344111013.

It is not an unprimeable number, because it can be changed into a prime (21344111039) 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, 911467 + ... + 934590.

It is an arithmetic number, because the mean of its divisors is an integer number (1395619848).

Almost surely, 2^21344111034 is an apocalyptic number.

21344111034 is an abundant number, since it is smaller than the sum of its proper divisors (23315724102).

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

21344111034 is a wasteful number, since it uses less digits than its factorization.

21344111034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846150.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 21344111034 its reverse (43011144312), we get a palindrome (64355255346).

The spelling of 21344111034 in words is "twenty-one billion, three hundred forty-four million, one hundred eleven thousand, thirty-four".