3145015410821 has 2 divisors, whose sum is σ = 3145015410822. Its totient is φ = 3145015410820.

The previous prime is 3145015410769. The next prime is 3145015410877. The reversal of 3145015410821 is 1280145105413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2771272701796 + 373742709025 = 1664714^2 + 611345^2 .

It is a cyclic number.

It is not a de Polignac number, because 3145015410821 - 2³⁴ = 3127835541637 is a prime.

It is a super-2 number, since 2×3145015410821² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3145015418821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572507705410 + 1572507705411.

It is an arithmetic number, because the mean of its divisors is an integer number (1572507705411).

Almost surely, 2^{3145015410821} is an apocalyptic number.

It is an amenable number.

3145015410821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3145015410821 is an equidigital number, since it uses as much as digits as its factorization.

3145015410821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 35.

The spelling of 3145015410821 in words is "three trillion, one hundred forty-five billion, fifteen million, four hundred ten thousand, eight hundred twenty-one".