20321122405036 has 12 divisors (see below), whose sum is σ = 35562072698712. Its totient is φ = 10160530205408.

The previous prime is 20321122405019. The next prime is 20321122405079. The reversal of 20321122405036 is 63050422112302.

It is a super-2 number, since 2×20321122405036² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20321122404989 and 20321122405007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6241630 + ... + 8921893.

It is an arithmetic number, because the mean of its divisors is an integer number (2963506058226).

Almost surely, 2^{20321122405036} is an apocalyptic number.

It is an amenable number.

20321122405036 is a deficient number, since it is larger than the sum of its proper divisors (15240950293676).

20321122405036 is a wasteful number, since it uses less digits than its factorization.

20321122405036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15498560 (or 15498558 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 20321122405036 its reverse (63050422112302), we get a palindrome (83371544517338).

The spelling of 20321122405036 in words is "twenty trillion, three hundred twenty-one billion, one hundred twenty-two million, four hundred five thousand, thirty-six".