506037942121 has 2 divisors, whose sum is σ = 506037942122. Its totient is φ = 506037942120.

The previous prime is 506037942103. The next prime is 506037942127. The reversal of 506037942121 is 121249730605.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 498451532121 + 7586410000 = 706011^2 + 87100^2 .

It is a cyclic number.

It is not a de Polignac number, because 506037942121 - 2⁷ = 506037941993 is a prime.

It is not a weakly prime, because it can be changed into another prime (506037942127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253018971060 + 253018971061.

It is an arithmetic number, because the mean of its divisors is an integer number (253018971061).

Almost surely, 2^506037942121 is an apocalyptic number.

It is an amenable number.

506037942121 is a deficient number, since it is larger than the sum of its proper divisors (1).

506037942121 is an equidigital number, since it uses as much as digits as its factorization.

506037942121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 506037942121 in words is "five hundred six billion, thirty-seven million, nine hundred forty-two thousand, one hundred twenty-one".