21123133100302 has 32 divisors (see below), whose sum is σ = 32297465448864. Its totient is φ = 10359464294400.

The previous prime is 21123133100257. The next prime is 21123133100359. The reversal of 21123133100302 is 20300133132112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19107402 + ... + 20182642.

It is an arithmetic number, because the mean of its divisors is an integer number (1009295795277).

Almost surely, 2^{21123133100302} is an apocalyptic number.

21123133100302 is a deficient number, since it is larger than the sum of its proper divisors (11174332348562).

21123133100302 is a wasteful number, since it uses less digits than its factorization.

21123133100302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076244.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21123133100302 its reverse (20300133132112), we get a palindrome (41423266232414).

The spelling of 21123133100302 in words is "twenty-one trillion, one hundred twenty-three billion, one hundred thirty-three million, one hundred thousand, three hundred two".