4100231232421 has 2 divisors, whose sum is σ = 4100231232422. Its totient is φ = 4100231232420.

The previous prime is 4100231232397. The next prime is 4100231232451. The reversal of 4100231232421 is 1242321320014.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3852387562500 + 247843669921 = 1962750^2 + 497839^2 .

It is a cyclic number.

It is not a de Polignac number, because 4100231232421 - 2⁹ = 4100231231909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4100231232451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2050115616210 + 2050115616211.

It is an arithmetic number, because the mean of its divisors is an integer number (2050115616211).

Almost surely, 2^{4100231232421} is an apocalyptic number.

It is an amenable number.

4100231232421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4100231232421 is an equidigital number, since it uses as much as digits as its factorization.

4100231232421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 4100231232421 its reverse (1242321320014), we get a palindrome (5342552552435).

The spelling of 4100231232421 in words is "four trillion, one hundred billion, two hundred thirty-one million, two hundred thirty-two thousand, four hundred twenty-one".