722321301323131 has 16 divisors (see below), whose sum is σ = 726553734681600. Its totient is φ = 718101943695648.

The previous prime is 722321301323119. The next prime is 722321301323173. The reversal of 722321301323131 is 131323103123227.

It is a cyclic number.

It is not a de Polignac number, because 722321301323131 - 2¹³ = 722321301314939 is a prime.

It is a super-2 number, since 2×722321301323131² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722321301123131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238404130 + ... + 241414936.

It is an arithmetic number, because the mean of its divisors is an integer number (45409608417600).

Almost surely, 2^{722321301323131} is an apocalyptic number.

722321301323131 is a deficient number, since it is larger than the sum of its proper divisors (4232433358469).

722321301323131 is a wasteful number, since it uses less digits than its factorization.

722321301323131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012978.

The product of its (nonzero) digits is 27216, while the sum is 34.

Adding to 722321301323131 its reverse (131323103123227), we get a palindrome (853644404446358).

The spelling of 722321301323131 in words is "seven hundred twenty-two trillion, three hundred twenty-one billion, three hundred one million, three hundred twenty-three thousand, one hundred thirty-one".