1103121028231 has 2 divisors, whose sum is σ = 1103121028232. Its totient is φ = 1103121028230.

The previous prime is 1103121028123. The next prime is 1103121028237. The reversal of 1103121028231 is 1328201213011.

Together with previous prime (1103121028123) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103121028231 is a prime.

It is a super-2 number, since 2×1103121028231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1103121028196 and 1103121028205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103121028237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551560514115 + 551560514116.

It is an arithmetic number, because the mean of its divisors is an integer number (551560514116).

Almost surely, 2^{1103121028231} is an apocalyptic number.

1103121028231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103121028231 is an equidigital number, since it uses as much as digits as its factorization.

1103121028231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 1103121028231 in words is "one trillion, one hundred three billion, one hundred twenty-one million, twenty-eight thousand, two hundred thirty-one".