1102012011 has 6 divisors (see below), whose sum is σ = 1591795140. Its totient is φ = 734674668.

The previous prime is 1102012003. The next prime is 1102012039. The reversal of 1102012011 is 1102102011.

It is a happy number.

It is not a de Polignac number, because 1102012011 - 2³ = 1102012003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 122445779 = 1102012011 / (1 + 1 + 0 + 2 + 0 + 1 + 2 + 0 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 1102011984 and 1102012002.

It is not an unprimeable number, because it can be changed into a prime (1102012511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61222881 + ... + 61222898.

It is an arithmetic number, because the mean of its divisors is an integer number (265299190).

Almost surely, 2^1102012011 is an apocalyptic number.

1102012011 is a deficient number, since it is larger than the sum of its proper divisors (489783129).

1102012011 is a wasteful number, since it uses less digits than its factorization.

1102012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122445785 (or 122445782 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1102012011 is about 33196.5662531534. The cubic root of 1102012011 is about 1032.9091136109.

Adding to 1102012011 its reverse (1102102011), we get a palindrome (2204114022).

Subtracting 1102012011 from its reverse (1102102011), we obtain a square (90000 = 300²).

The spelling of 1102012011 in words is "one billion, one hundred two million, twelve thousand, eleven".