20121103113037 has 2 divisors, whose sum is σ = 20121103113038. Its totient is φ = 20121103113036.

The previous prime is 20121103112947. The next prime is 20121103113053. The reversal of 20121103113037 is 73031130112102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15019259969961 + 5101843143076 = 3875469^2 + 2258726^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20121103113037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20121103110037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060551556518 + 10060551556519.

It is an arithmetic number, because the mean of its divisors is an integer number (10060551556519).

Almost surely, 2^{20121103113037} is an apocalyptic number.

It is an amenable number.

20121103113037 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121103113037 is an equidigital number, since it uses as much as digits as its factorization.

20121103113037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

Adding to 20121103113037 its reverse (73031130112102), we get a palindrome (93152233225139).

The spelling of 20121103113037 in words is "twenty trillion, one hundred twenty-one billion, one hundred three million, one hundred thirteen thousand, thirty-seven".