21404523201060 has 96 divisors (see below), whose sum is σ = 60322154884992. Its totient is φ = 5670839669760.

The previous prime is 21404523201043. The next prime is 21404523201077. The reversal of 21404523201060 is 6010232540412.

It is an interprime number because it is at equal distance from previous prime (21404523201043) and next prime (21404523201077).

It is a super-2 number, since 2×21404523201060² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10264387 + ... + 12172373.

It is an arithmetic number, because the mean of its divisors is an integer number (628355780052).

Almost surely, 2^{21404523201060} is an apocalyptic number.

21404523201060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21404523201060 is an abundant number, since it is smaller than the sum of its proper divisors (38917631683932).

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

21404523201060 is a wasteful number, since it uses less digits than its factorization.

21404523201060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909213 (or 1909211 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 21404523201060 its reverse (6010232540412), we get a palindrome (27414755741472).

The spelling of 21404523201060 in words is "twenty-one trillion, four hundred four billion, five hundred twenty-three million, two hundred one thousand, sixty".