3140331421 has 2 divisors, whose sum is σ = 3140331422. Its totient is φ = 3140331420.

The previous prime is 3140331391. The next prime is 3140331479. The reversal of 3140331421 is 1241330413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3092583321 + 47748100 = 55611^2 + 6910^2 .

It is a cyclic number.

It is not a de Polignac number, because 3140331421 - 2¹⁵ = 3140298653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3140331392 and 3140331401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3140331121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1570165710 + 1570165711.

It is an arithmetic number, because the mean of its divisors is an integer number (1570165711).

Almost surely, 2^3140331421 is an apocalyptic number.

It is an amenable number.

3140331421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3140331421 is an equidigital number, since it uses as much as digits as its factorization.

3140331421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 3140331421 is about 56038.6600571427. The cubic root of 3140331421 is about 1464.3958682733.

Adding to 3140331421 its reverse (1241330413), we get a palindrome (4381661834).

The spelling of 3140331421 in words is "three billion, one hundred forty million, three hundred thirty-one thousand, four hundred twenty-one".