153323220021 has 12 divisors (see below), whose sum is σ = 215756776512. Its totient is φ = 96835717224.

The previous prime is 153323219999. The next prime is 153323220067. The reversal of 153323220021 is 120022323351.

It is a happy number.

153323220021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 153323220021 - 2⁷ = 153323219893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 153323219973 and 153323220000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153323220521) 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, 70785261 + ... + 70787426.

It is an arithmetic number, because the mean of its divisors is an integer number (17979731376).

Almost surely, 2^153323220021 is an apocalyptic number.

It is an amenable number.

153323220021 is a deficient number, since it is larger than the sum of its proper divisors (62433556491).

153323220021 is a wasteful number, since it uses less digits than its factorization.

153323220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141572728 (or 141572709 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 153323220021 its reverse (120022323351), we get a palindrome (273345543372).

The spelling of 153323220021 in words is "one hundred fifty-three billion, three hundred twenty-three million, two hundred twenty thousand, twenty-one".