21053432241404 has 6 divisors (see below), whose sum is σ = 36843506422464. Its totient is φ = 10526716120700.

The previous prime is 21053432241403. The next prime is 21053432241409. The reversal of 21053432241404 is 40414223435012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21053432241403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2631679030172 + ... + 2631679030179.

It is an arithmetic number, because the mean of its divisors is an integer number (6140584403744).

Almost surely, 2^{21053432241404} is an apocalyptic number.

It is an amenable number.

21053432241404 is a deficient number, since it is larger than the sum of its proper divisors (15790074181060).

21053432241404 is a wasteful number, since it uses less digits than its factorization.

21053432241404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5263358060355 (or 5263358060353 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 21053432241404 its reverse (40414223435012), we get a palindrome (61467655676416).

The spelling of 21053432241404 in words is "twenty-one trillion, fifty-three billion, four hundred thirty-two million, two hundred forty-one thousand, four hundred four".