400103011 has 16 divisors (see below), whose sum is σ = 499269888. Its totient is φ = 311493600.

The previous prime is 400102993. The next prime is 400103047. The reversal of 400103011 is 110301004.

It is a happy number.

It is not a de Polignac number, because 400103011 - 2⁵ = 400102979 is a prime.

It is a super-2 number, since 2×400103011² = 320164838822532242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400103071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156816 + ... + 159346.

It is an arithmetic number, because the mean of its divisors is an integer number (31204368).

Almost surely, 2^400103011 is an apocalyptic number.

400103011 is a deficient number, since it is larger than the sum of its proper divisors (99166877).

400103011 is a wasteful number, since it uses less digits than its factorization.

400103011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4602.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 400103011 is about 20002.5751092203. The cubic root of 400103011 is about 736.8695435942.

Adding to 400103011 its reverse (110301004), we get a palindrome (510404015).

The spelling of 400103011 in words is "four hundred million, one hundred three thousand, eleven".