21401141557203 has 10 divisors (see below), whose sum is σ = 31969606523844. Its totient is φ = 14267427704748.

The previous prime is 21401141557199. The next prime is 21401141557217. The reversal of 21401141557203 is 30275514110412.

21401141557203 is a `hidden beast` number, since 2 + 1 + 40 + 1 + 1 + 41 + 5 + 572 + 0 + 3 = 666.

It is not a de Polignac number, because 21401141557203 - 2² = 21401141557199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21401141557223) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 132105812001 + ... + 132105812162.

Almost surely, 2^{21401141557203} is an apocalyptic number.

21401141557203 is a deficient number, since it is larger than the sum of its proper divisors (10568464966641).

21401141557203 is an equidigital number, since it uses as much as digits as its factorization.

21401141557203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264211624175 (or 264211624166 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

Adding to 21401141557203 its reverse (30275514110412), we get a palindrome (51676655667615).

The spelling of 21401141557203 in words is "twenty-one trillion, four hundred one billion, one hundred forty-one million, five hundred fifty-seven thousand, two hundred three".