3142403021 has 2 divisors, whose sum is σ = 3142403022. Its totient is φ = 3142403020.

The previous prime is 3142402981. The next prime is 3142403059. The reversal of 3142403021 is 1203042413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2571909796 + 570493225 = 50714^2 + 23885^2 .

It is an emirp because it is prime and its reverse (1203042413) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3142403021 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3142402984 and 3142403002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3142103021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1571201510 + 1571201511.

It is an arithmetic number, because the mean of its divisors is an integer number (1571201511).

Almost surely, 2^3142403021 is an apocalyptic number.

It is an amenable number.

3142403021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3142403021 is an equidigital number, since it uses as much as digits as its factorization.

3142403021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3142403021 is about 56057.1406780617. The cubic root of 3142403021 is about 1464.7178062309.

Adding to 3142403021 its reverse (1203042413), we get a palindrome (4345445434).

The spelling of 3142403021 in words is "three billion, one hundred forty-two million, four hundred three thousand, twenty-one".