21410234142 has 16 divisors (see below), whose sum is σ = 46713238272. Its totient is φ = 6487949720.

The previous prime is 21410234101. The next prime is 21410234143. The reversal of 21410234142 is 24143201412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21410234143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162198678 + ... + 162198809.

It is an arithmetic number, because the mean of its divisors is an integer number (2919577392).

Almost surely, 2^21410234142 is an apocalyptic number.

21410234142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21410234142 is an abundant number, since it is smaller than the sum of its proper divisors (25303004130).

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

21410234142 is a wasteful number, since it uses less digits than its factorization.

21410234142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324397503.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21410234142 its reverse (24143201412), we get a palindrome (45553435554).

It can be divided in two parts, 21410 and 234142, that added together give a palindrome (255552).

The spelling of 21410234142 in words is "twenty-one billion, four hundred ten million, two hundred thirty-four thousand, one hundred forty-two".