103011001 has 4 divisors (see below), whose sum is σ = 103702500. Its totient is φ = 102319504.

The previous prime is 103010977. The next prime is 103011017. The reversal of 103011001 is 100110301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38192400 + 64818601 = 6180^2 + 8051^2 .

It is a cyclic number.

It is not a de Polignac number, because 103011001 - 2¹¹ = 103008953 is a prime.

It is a super-2 number, since 2×103011001² = 21222532654044002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103011031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345526 + ... + 345823.

It is an arithmetic number, because the mean of its divisors is an integer number (25925625).

Almost surely, 2^103011001 is an apocalyptic number.

It is an amenable number.

103011001 is a deficient number, since it is larger than the sum of its proper divisors (691499).

103011001 is an equidigital number, since it uses as much as digits as its factorization.

103011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691498.

The product of its (nonzero) digits is 3, while the sum is 7.

The square root of 103011001 is about 10149.4335309908. The cubic root of 103011001 is about 468.7715027529.

Adding to 103011001 its reverse (100110301), we get a palindrome (203121302).

It can be divided in two parts, 10301 and 1001, that multiplied together give a palindrome (10311301).

The spelling of 103011001 in words is "one hundred three million, eleven thousand, one".