10400120111 has 2 divisors, whose sum is σ = 10400120112. Its totient is φ = 10400120110.

The previous prime is 10400120069. The next prime is 10400120119. The reversal of 10400120111 is 11102100401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10400120111 - 2⁶ = 10400120047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10400120092 and 10400120101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10400120119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200060055 + 5200060056.

It is an arithmetic number, because the mean of its divisors is an integer number (5200060056).

Almost surely, 2^10400120111 is an apocalyptic number.

10400120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

10400120111 is an equidigital number, since it uses as much as digits as its factorization.

10400120111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10400120111 its reverse (11102100401), we get a palindrome (21502220512).

The spelling of 10400120111 in words is "ten billion, four hundred million, one hundred twenty thousand, one hundred eleven".