40314231421 has 2 divisors, whose sum is σ = 40314231422. Its totient is φ = 40314231420.

The previous prime is 40314231403. The next prime is 40314231437. The reversal of 40314231421 is 12413241304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39238063396 + 1076168025 = 198086^2 + 32805^2 .

It is a cyclic number.

It is not a de Polignac number, because 40314231421 - 2⁵ = 40314231389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40314237421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20157115710 + 20157115711.

It is an arithmetic number, because the mean of its divisors is an integer number (20157115711).

Almost surely, 2^40314231421 is an apocalyptic number.

It is an amenable number.

40314231421 is a deficient number, since it is larger than the sum of its proper divisors (1).

40314231421 is an equidigital number, since it uses as much as digits as its factorization.

40314231421 is an evil number, because the sum of its binary digits is even.

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

Adding to 40314231421 its reverse (12413241304), we get a palindrome (52727472725).

The spelling of 40314231421 in words is "forty billion, three hundred fourteen million, two hundred thirty-one thousand, four hundred twenty-one".