1400012011 has 4 divisors (see below), whose sum is σ = 1400157400. Its totient is φ = 1399866624.

The previous prime is 1400011997. The next prime is 1400012021. The reversal of 1400012011 is 1102100041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1102100041 = 7 ⋅157442863.

It is a cyclic number.

It is not a de Polignac number, because 1400012011 - 2¹³ = 1400003819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400012021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57141 + ... + 77878.

It is an arithmetic number, because the mean of its divisors is an integer number (350039350).

Almost surely, 2^1400012011 is an apocalyptic number.

1400012011 is a deficient number, since it is larger than the sum of its proper divisors (145389).

1400012011 is a wasteful number, since it uses less digits than its factorization.

1400012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145388.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1400012011 is about 37416.7343711340. The cubic root of 1400012011 is about 1118.6921412563.

Adding to 1400012011 its reverse (1102100041), we get a palindrome (2502112052).

The spelling of 1400012011 in words is "one billion, four hundred million, twelve thousand, eleven".