21434111013140 has 96 divisors (see below), whose sum is σ = 52640301821184. Its totient is φ = 7177646730240.

The previous prime is 21434111013127. The next prime is 21434111013143. The reversal of 21434111013140 is 4131011143412.

It is a super-2 number, since 2×21434111013140² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21434111013143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193433432 + ... + 193544208.

It is an arithmetic number, because the mean of its divisors is an integer number (548336477304).

Almost surely, 2^{21434111013140} is an apocalyptic number.

21434111013140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21434111013140 is an abundant number, since it is smaller than the sum of its proper divisors (31206190808044).

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

21434111013140 is a wasteful number, since it uses less digits than its factorization.

21434111013140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142977 (or 142975 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 21434111013140 its reverse (4131011143412), we get a palindrome (25565122156552).

The spelling of 21434111013140 in words is "twenty-one trillion, four hundred thirty-four billion, one hundred eleven million, thirteen thousand, one hundred forty".