321120020102 has 24 divisors (see below), whose sum is σ = 560389446144. Its totient is φ = 137606218512.

The previous prime is 321120020101. The next prime is 321120020113. The reversal of 321120020102 is 201020021123.

It is a happy number.

It is a super-3 number, since 3×321120020102³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321120020101) 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, 633848 + ... + 1021764.

It is an arithmetic number, because the mean of its divisors is an integer number (23349560256).

Almost surely, 2^321120020102 is an apocalyptic number.

321120020102 is a deficient number, since it is larger than the sum of its proper divisors (239269426042).

321120020102 is a wasteful number, since it uses less digits than its factorization.

321120020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396380 (or 396373 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 321120020102 its reverse (201020021123), we get a palindrome (522140041225).

The spelling of 321120020102 in words is "three hundred twenty-one billion, one hundred twenty million, twenty thousand, one hundred two".