40100002321 has 2 divisors, whose sum is σ = 40100002322. Its totient is φ = 40100002320.

The previous prime is 40100002309. The next prime is 40100002351. The reversal of 40100002321 is 12320000104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35866678225 + 4233324096 = 189385^2 + 65064^2 .

It is a cyclic number.

It is not a de Polignac number, because 40100002321 - 2²³ = 40091613713 is a prime.

It is a super-2 number, since 2×40100002321² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40100002351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20050001160 + 20050001161.

It is an arithmetic number, because the mean of its divisors is an integer number (20050001161).

Almost surely, 2^40100002321 is an apocalyptic number.

It is an amenable number.

40100002321 is a deficient number, since it is larger than the sum of its proper divisors (1).

40100002321 is an equidigital number, since it uses as much as digits as its factorization.

40100002321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 40100002321 its reverse (12320000104), we get a palindrome (52420002425).

The spelling of 40100002321 in words is "forty billion, one hundred million, two thousand, three hundred twenty-one".