1012012011 has 12 divisors (see below), whose sum is σ = 1466137192. Its totient is φ = 672670656.

The previous prime is 1012012003. The next prime is 1012012031. The reversal of 1012012011 is 1102102101.

It is a happy number.

It is not a de Polignac number, because 1012012011 - 2³ = 1012012003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012011984 and 1012012002.

It is not an unprimeable number, because it can be changed into a prime (1012012031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163801 + ... + 169866.

Almost surely, 2^1012012011 is an apocalyptic number.

1012012011 is a deficient number, since it is larger than the sum of its proper divisors (454125181).

1012012011 is a wasteful number, since it uses less digits than its factorization.

1012012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334010 (or 334007 counting only the distinct ones).

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

The square root of 1012012011 is about 31812.1362218887. The cubic root of 1012012011 is about 1003.9880777593.

Adding to 1012012011 its reverse (1102102101), we get a palindrome (2114114112).

The spelling of 1012012011 in words is "one billion, twelve million, twelve thousand, eleven".