1400011121 has 2 divisors, whose sum is σ = 1400011122. Its totient is φ = 1400011120.

The previous prime is 1400011111. The next prime is 1400011139. The reversal of 1400011121 is 1211100041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1336633600 + 63377521 = 36560^2 + 7961^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400011121 is a prime.

It is a super-2 number, since 2×1400011121² = 3920062277847353282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1400011111) 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, 700005560 + 700005561.

It is an arithmetic number, because the mean of its divisors is an integer number (700005561).

Almost surely, 2^1400011121 is an apocalyptic number.

It is an amenable number.

1400011121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400011121 is an equidigital number, since it uses as much as digits as its factorization.

1400011121 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.

The square root of 1400011121 is about 37416.7224780579. The cubic root of 1400011121 is about 1118.6919042021.

Adding to 1400011121 its reverse (1211100041), we get a palindrome (2611111162).

The spelling of 1400011121 in words is "one billion, four hundred million, eleven thousand, one hundred twenty-one".