321106031245 has 16 divisors (see below), whose sum is σ = 395776846080. Its totient is φ = 249919660224.

The previous prime is 321106031161. The next prime is 321106031299. The reversal of 321106031245 is 542130601123.

It is a cyclic number.

It is not a de Polignac number, because 321106031245 - 2¹⁹ = 321105506957 is a prime.

It is a congruent 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, 2174986 + ... + 2317924.

It is an arithmetic number, because the mean of its divisors is an integer number (24736052880).

Almost surely, 2^321106031245 is an apocalyptic number.

It is an amenable number.

321106031245 is a deficient number, since it is larger than the sum of its proper divisors (74670814835).

321106031245 is a wasteful number, since it uses less digits than its factorization.

321106031245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155124.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 321106031245 its reverse (542130601123), we get a palindrome (863236632368).

The spelling of 321106031245 in words is "three hundred twenty-one billion, one hundred six million, thirty-one thousand, two hundred forty-five".