20121003737 has 2 divisors, whose sum is σ = 20121003738. Its totient is φ = 20121003736.

The previous prime is 20121003719. The next prime is 20121003751. The reversal of 20121003737 is 73730012102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19851682816 + 269320921 = 140896^2 + 16411^2 .

It is a cyclic number.

It is not a de Polignac number, because 20121003737 - 2¹² = 20120999641 is a prime.

It is not a weakly prime, because it can be changed into another prime (20121003767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060501868 + 10060501869.

It is an arithmetic number, because the mean of its divisors is an integer number (10060501869).

Almost surely, 2^20121003737 is an apocalyptic number.

It is an amenable number.

20121003737 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121003737 is an equidigital number, since it uses as much as digits as its factorization.

20121003737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 26.

Adding to 20121003737 its reverse (73730012102), we get a palindrome (93851015839).

The spelling of 20121003737 in words is "twenty billion, one hundred twenty-one million, three thousand, seven hundred thirty-seven".