21415032355403 has 2 divisors, whose sum is σ = 21415032355404. Its totient is φ = 21415032355402.

The previous prime is 21415032355373. The next prime is 21415032355433. The reversal of 21415032355403 is 30455323051412.

It is a balanced prime because it is at equal distance from previous prime (21415032355373) and next prime (21415032355433).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21415032355403 is a prime.

It is a super-2 number, since 2×21415032355403² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21415032355433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10707516177701 + 10707516177702.

It is an arithmetic number, because the mean of its divisors is an integer number (10707516177702).

Almost surely, 2^{21415032355403} is an apocalyptic number.

21415032355403 is a deficient number, since it is larger than the sum of its proper divisors (1).

21415032355403 is an equidigital number, since it uses as much as digits as its factorization.

21415032355403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 21415032355403 in words is "twenty-one trillion, four hundred fifteen billion, thirty-two million, three hundred fifty-five thousand, four hundred three".