21033010133242 has 16 divisors (see below), whose sum is σ = 31996348640640. Its totient is φ = 10367956190592.

The previous prime is 21033010133237. The next prime is 21033010133269. The reversal of 21033010133242 is 24233101033012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98794348 + ... + 99007015.

It is an arithmetic number, because the mean of its divisors is an integer number (1999771790040).

Almost surely, 2^{21033010133242} is an apocalyptic number.

21033010133242 is a deficient number, since it is larger than the sum of its proper divisors (10963338507398).

21033010133242 is a wasteful number, since it uses less digits than its factorization.

21033010133242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197802117.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21033010133242 its reverse (24233101033012), we get a palindrome (45266111166254).

The spelling of 21033010133242 in words is "twenty-one trillion, thirty-three billion, ten million, one hundred thirty-three thousand, two hundred forty-two".