1031201123101 has 2 divisors, whose sum is σ = 1031201123102. Its totient is φ = 1031201123100.

The previous prime is 1031201123087. The next prime is 1031201123119. The reversal of 1031201123101 is 1013211021301.

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., 1024619695225 + 6581427876 = 1012235^2 + 81126^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031201123101 - 2²³ = 1031192734493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031201123131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515600561550 + 515600561551.

It is an arithmetic number, because the mean of its divisors is an integer number (515600561551).

Almost surely, 2^{1031201123101} is an apocalyptic number.

It is an amenable number.

1031201123101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031201123101 is an equidigital number, since it uses as much as digits as its factorization.

1031201123101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1031201123101 its reverse (1013211021301), we get a palindrome (2044412144402).

It can be divided in two parts, 103120 and 1123101, that added together give a palindrome (1226221).

The spelling of 1031201123101 in words is "one trillion, thirty-one billion, two hundred one million, one hundred twenty-three thousand, one hundred one".