1012123011 has 8 divisors (see below), whose sum is σ = 1362599680. Its totient is φ = 668197512.

The previous prime is 1012123009. The next prime is 1012123031. The reversal of 1012123011 is 1103212101.

1012123011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1012123011 - 2¹ = 1012123009 is a prime.

It is a super-2 number, since 2×1012123011² = 2048785978791412242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012123031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1637431 + ... + 1638048.

It is an arithmetic number, because the mean of its divisors is an integer number (170324960).

Almost surely, 2^1012123011 is an apocalyptic number.

1012123011 is a deficient number, since it is larger than the sum of its proper divisors (350476669).

1012123011 is a wasteful number, since it uses less digits than its factorization.

1012123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275585.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1012123011 is about 31813.8807912521. The cubic root of 1012123011 is about 1004.0247830557.

Adding to 1012123011 its reverse (1103212101), we get a palindrome (2115335112).

The spelling of 1012123011 in words is "one billion, twelve million, one hundred twenty-three thousand, eleven".