321020101213 has 12 divisors (see below), whose sum is σ = 373453645152. Its totient is φ = 275143803480.

The previous prime is 321020101211. The next prime is 321020101249. The reversal of 321020101213 is 312101020123.

It is not a de Polignac number, because 321020101213 - 2¹ = 321020101211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321020101211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 682648 + ... + 1052638.

It is an arithmetic number, because the mean of its divisors is an integer number (31121137096).

Almost surely, 2^321020101213 is an apocalyptic number.

It is an amenable number.

321020101213 is a deficient number, since it is larger than the sum of its proper divisors (52433543939).

321020101213 is a wasteful number, since it uses less digits than its factorization.

321020101213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387712 (or 387705 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 321020101213 its reverse (312101020123), we get a palindrome (633121121336).

The spelling of 321020101213 in words is "three hundred twenty-one billion, twenty million, one hundred one thousand, two hundred thirteen".