20143102237 has 2 divisors, whose sum is σ = 20143102238. Its totient is φ = 20143102236.

The previous prime is 20143102229. The next prime is 20143102261. The reversal of 20143102237 is 73220134102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20065855716 + 77246521 = 141654^2 + 8789^2 .

It is a cyclic number.

It is not a de Polignac number, because 20143102237 - 2³ = 20143102229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20143102537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10071551118 + 10071551119.

It is an arithmetic number, because the mean of its divisors is an integer number (10071551119).

Almost surely, 2^20143102237 is an apocalyptic number.

It is an amenable number.

20143102237 is a deficient number, since it is larger than the sum of its proper divisors (1).

20143102237 is an equidigital number, since it uses as much as digits as its factorization.

20143102237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 20143102237 its reverse (73220134102), we get a palindrome (93363236339).

The spelling of 20143102237 in words is "twenty billion, one hundred forty-three million, one hundred two thousand, two hundred thirty-seven".