1103121023231 has 2 divisors, whose sum is σ = 1103121023232. Its totient is φ = 1103121023230.

The previous prime is 1103121023197. The next prime is 1103121023273. The reversal of 1103121023231 is 1323201213011.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1103121023231 - 2¹⁸ = 1103120761087 is a prime.

It is a super-2 number, since 2×1103121023231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103121028231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551560511615 + 551560511616.

It is an arithmetic number, because the mean of its divisors is an integer number (551560511616).

Almost surely, 2^{1103121023231} is an apocalyptic number.

1103121023231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103121023231 is an equidigital number, since it uses as much as digits as its factorization.

1103121023231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1103121023231 its reverse (1323201213011), we get a palindrome (2426322236242).

The spelling of 1103121023231 in words is "one trillion, one hundred three billion, one hundred twenty-one million, twenty-three thousand, two hundred thirty-one".