1012102011 has 6 divisors (see below), whose sum is σ = 1461925140. Its totient is φ = 674734668.

The previous prime is 1012101991. The next prime is 1012102027. The reversal of 1012102011 is 1102012101.

It is a happy number.

It is not a de Polignac number, because 1012102011 - 2²² = 1007907707 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: 112455779 = 1012102011 / (1 + 0 + 1 + 2 + 1 + 0 + 2 + 0 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 1012101984 and 1012102002.

It is not an unprimeable number, because it can be changed into a prime (1012102031) 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 5 ways as a sum of consecutive naturals, for example, 56227881 + ... + 56227898.

It is an arithmetic number, because the mean of its divisors is an integer number (243654190).

Almost surely, 2^1012102011 is an apocalyptic number.

1012102011 is a deficient number, since it is larger than the sum of its proper divisors (449823129).

1012102011 is a wasteful number, since it uses less digits than its factorization.

1012102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112455785 (or 112455782 counting only the distinct ones).

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

The square root of 1012102011 is about 31813.5507449263. The cubic root of 1012102011 is about 1004.0178390163.

Adding to 1012102011 its reverse (1102012101), we get a palindrome (2114114112).

The spelling of 1012102011 in words is "one billion, twelve million, one hundred two thousand, eleven".