20021322131032 has 32 divisors (see below), whose sum is σ = 38360573553600. Its totient is φ = 9792078868224.

The previous prime is 20021322131023. The next prime is 20021322131033. The reversal of 20021322131032 is 23013122312002.

It is a junction number, because it is equal to n+sod(n) for n = 20021322130994 and 20021322131012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021322131033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14528607 + ... + 15846862.

It is an arithmetic number, because the mean of its divisors is an integer number (1198767923550).

Almost surely, 2^{20021322131032} is an apocalyptic number.

It is an amenable number.

20021322131032 is a deficient number, since it is larger than the sum of its proper divisors (18339251422568).

20021322131032 is a wasteful number, since it uses less digits than its factorization.

20021322131032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30377275 (or 30377271 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20021322131032 its reverse (23013122312002), we get a palindrome (43034444443034).

The spelling of 20021322131032 in words is "twenty trillion, twenty-one billion, three hundred twenty-two million, one hundred thirty-one thousand, thirty-two".