21364230435103 has 16 divisors (see below), whose sum is σ = 23365409734656. Its totient is φ = 19446588443520.

The previous prime is 21364230435101. The next prime is 21364230435109. The reversal of 21364230435103 is 30153403246312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21364230435103 - 2¹ = 21364230435101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21364230435101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11970351 + ... + 13638832.

It is an arithmetic number, because the mean of its divisors is an integer number (1460338108416).

Almost surely, 2^{21364230435103} is an apocalyptic number.

21364230435103 is a deficient number, since it is larger than the sum of its proper divisors (2001179299553).

21364230435103 is a wasteful number, since it uses less digits than its factorization.

21364230435103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25610814.

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 21364230435103 in words is "twenty-one trillion, three hundred sixty-four billion, two hundred thirty million, four hundred thirty-five thousand, one hundred three".