321100302145 has 16 divisors (see below), whose sum is σ = 440499691008. Its totient is φ = 220116283200.

The previous prime is 321100302101. The next prime is 321100302163. The reversal of 321100302145 is 541203001123.

It is a happy number.

It is not a de Polignac number, because 321100302145 - 2¹³ = 321100293953 is a prime.

It is a super-2 number, since 2×321100302145² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1274089 + ... + 1505158.

It is an arithmetic number, because the mean of its divisors is an integer number (27531230688).

Almost surely, 2^321100302145 is an apocalyptic number.

321100302145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

321100302145 is a deficient number, since it is larger than the sum of its proper divisors (119399388863).

321100302145 is a wasteful number, since it uses less digits than its factorization.

321100302145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782560.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 321100302145 its reverse (541203001123), we get a palindrome (862303303268).

The spelling of 321100302145 in words is "three hundred twenty-one billion, one hundred million, three hundred two thousand, one hundred forty-five".