37733020121 has 2 divisors, whose sum is σ = 37733020122. Its totient is φ = 37733020120.

The previous prime is 37733020099. The next prime is 37733020141. The reversal of 37733020121 is 12102033773.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34477062400 + 3255957721 = 185680^2 + 57061^2 .

It is a cyclic number.

It is not a de Polignac number, because 37733020121 - 2⁶ = 37733020057 is a prime.

It is not a weakly prime, because it can be changed into another prime (37733020141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18866510060 + 18866510061.

It is an arithmetic number, because the mean of its divisors is an integer number (18866510061).

Almost surely, 2^37733020121 is an apocalyptic number.

It is an amenable number.

37733020121 is a deficient number, since it is larger than the sum of its proper divisors (1).

37733020121 is an equidigital number, since it uses as much as digits as its factorization.

37733020121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 29.

Adding to 37733020121 its reverse (12102033773), we get a palindrome (49835053894).

The spelling of 37733020121 in words is "thirty-seven billion, seven hundred thirty-three million, twenty thousand, one hundred twenty-one".