103012011 has 6 divisors (see below), whose sum is σ = 148795140. Its totient is φ = 68674668.

The previous prime is 103011991. The next prime is 103012037. The reversal of 103012011 is 110210301.

It is not a de Polignac number, because 103012011 - 2²² = 98817707 is a prime.

It is a super-2 number, since 2×103012011² = 21222948820528242, which contains 22 as substring.

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: 11445779 = 103012011 / (1 + 0 + 3 + 0 + 1 + 2 + 0 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 103011984 and 103012002.

It is not an unprimeable number, because it can be changed into a prime (103013011) 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, 5722881 + ... + 5722898.

It is an arithmetic number, because the mean of its divisors is an integer number (24799190).

Almost surely, 2^103012011 is an apocalyptic number.

103012011 is a deficient number, since it is larger than the sum of its proper divisors (45783129).

103012011 is a wasteful number, since it uses less digits than its factorization.

103012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11445785 (or 11445782 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 103012011 is about 10149.4832873403. The cubic root of 103012011 is about 468.7730348147.

Adding to 103012011 its reverse (110210301), we get a palindrome (213222312).

It can be divided in two parts, 1030 and 12011, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 103012011 in words is "one hundred three million, twelve thousand, eleven".