723511031114321 has 2 divisors, whose sum is σ = 723511031114322. Its totient is φ = 723511031114320.

The previous prime is 723511031114317. The next prime is 723511031114359. The reversal of 723511031114321 is 123411130115327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 438773080441921 + 284737950672400 = 20946911^2 + 16874180^2 .

It is an emirp because it is prime and its reverse (123411130115327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 723511031114321 - 2² = 723511031114317 is a prime.

It is not a weakly prime, because it can be changed into another prime (723511031110321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361755515557160 + 361755515557161.

It is an arithmetic number, because the mean of its divisors is an integer number (361755515557161).

Almost surely, 2^{723511031114321} is an apocalyptic number.

It is an amenable number.

723511031114321 is a deficient number, since it is larger than the sum of its proper divisors (1).

723511031114321 is an equidigital number, since it uses as much as digits as its factorization.

723511031114321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

Adding to 723511031114321 its reverse (123411130115327), we get a palindrome (846922161229648).

The spelling of 723511031114321 in words is "seven hundred twenty-three trillion, five hundred eleven billion, thirty-one million, one hundred fourteen thousand, three hundred twenty-one".