21410271234 has 48 divisors (see below), whose sum is σ = 52806371904. Its totient is φ = 6205874400.

The previous prime is 21410271221. The next prime is 21410271247. The reversal of 21410271234 is 43217201412.

It is an interprime number because it is at equal distance from previous prime (21410271221) and next prime (21410271247).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21410271198 and 21410271207.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2346157 + ... + 2355264.

It is an arithmetic number, because the mean of its divisors is an integer number (1100132748).

Almost surely, 2^21410271234 is an apocalyptic number.

21410271234 is an abundant number, since it is smaller than the sum of its proper divisors (31396100670).

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

21410271234 is a wasteful number, since it uses less digits than its factorization.

21410271234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4701463 (or 4701460 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

Adding to 21410271234 its reverse (43217201412), we get a palindrome (64627472646).

The spelling of 21410271234 in words is "twenty-one billion, four hundred ten million, two hundred seventy-one thousand, two hundred thirty-four".