21410324120400 has 120 divisors (see below), whose sum is σ = 68585432944800. Its totient is φ = 5709334187520.

The previous prime is 21410324120371. The next prime is 21410324120401. The reversal of 21410324120400 is 402142301412.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21410324120401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152988859 + ... + 153128741.

It is an arithmetic number, because the mean of its divisors is an integer number (571545274540).

Almost surely, 2^{21410324120400} is an apocalyptic number.

21410324120400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21410324120400 is an abundant number, since it is smaller than the sum of its proper divisors (47175108824400).

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

21410324120400 is a wasteful number, since it uses less digits than its factorization.

21410324120400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267453 (or 267442 counting only the distinct ones).

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

Adding to 21410324120400 its reverse (402142301412), we get a palindrome (21812466421812).

The spelling of 21410324120400 in words is "twenty-one trillion, four hundred ten billion, three hundred twenty-four million, one hundred twenty thousand, four hundred".