21303102510153 has 12 divisors (see below), whose sum is σ = 32390682179440. Its totient is φ = 13454591058936.

The previous prime is 21303102510103. The next prime is 21303102510269. The reversal of 21303102510153 is 35101520130312.

21303102510153 is a `hidden beast` number, since 2 + 1 + 30 + 3 + 102 + 510 + 15 + 3 = 666.

It is not a de Polignac number, because 21303102510153 - 2¹² = 21303102506057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21303102510103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62289773251 + ... + 62289773592.

Almost surely, 2^{21303102510153} is an apocalyptic number.

It is an amenable number.

21303102510153 is a deficient number, since it is larger than the sum of its proper divisors (11087579669287).

21303102510153 is a wasteful number, since it uses less digits than its factorization.

21303102510153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124579546868 (or 124579546865 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 21303102510153 its reverse (35101520130312), we get a palindrome (56404622640465).

The spelling of 21303102510153 in words is "twenty-one trillion, three hundred three billion, one hundred two million, five hundred ten thousand, one hundred fifty-three".