10403121121111 has 2 divisors, whose sum is σ = 10403121121112. Its totient is φ = 10403121121110.

The previous prime is 10403121121093. The next prime is 10403121121117. The reversal of 10403121121111 is 11112112130401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10403121121111 - 2⁵ = 10403121121079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10403121121117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5201560560555 + 5201560560556.

It is an arithmetic number, because the mean of its divisors is an integer number (5201560560556).

Almost surely, 2^{10403121121111} is an apocalyptic number.

10403121121111 is a deficient number, since it is larger than the sum of its proper divisors (1).

10403121121111 is an equidigital number, since it uses as much as digits as its factorization.

10403121121111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 10403121121111 its reverse (11112112130401), we get a palindrome (21515233251512).

The spelling of 10403121121111 in words is "ten trillion, four hundred three billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred eleven".