1203723401137 has 2 divisors, whose sum is σ = 1203723401138. Its totient is φ = 1203723401136.

The previous prime is 1203723401119. The next prime is 1203723401149. The reversal of 1203723401137 is 7311043273021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1199570372001 + 4153029136 = 1095249^2 + 64444^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203723401137 - 2¹¹ = 1203723399089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1203723401117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601861700568 + 601861700569.

It is an arithmetic number, because the mean of its divisors is an integer number (601861700569).

Almost surely, 2^{1203723401137} is an apocalyptic number.

It is an amenable number.

1203723401137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203723401137 is an equidigital number, since it uses as much as digits as its factorization.

1203723401137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 34.

Adding to 1203723401137 its reverse (7311043273021), we get a palindrome (8514766674158).

The spelling of 1203723401137 in words is "one trillion, two hundred three billion, seven hundred twenty-three million, four hundred one thousand, one hundred thirty-seven".