400130111 has 6 divisors (see below), whose sum is σ = 410129136. Its totient is φ = 390369200.

The previous prime is 400130077. The next prime is 400130119. The reversal of 400130111 is 111031004.

It is not a de Polignac number, because 400130111 - 2¹⁸ = 399867967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400130092 and 400130101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400130119) 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, 117335 + ... + 120696.

It is an arithmetic number, because the mean of its divisors is an integer number (68354856).

Almost surely, 2^400130111 is an apocalyptic number.

400130111 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

400130111 is a deficient number, since it is larger than the sum of its proper divisors (9999025).

400130111 is an equidigital number, since it uses as much as digits as its factorization.

400130111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238113 (or 238072 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 400130111 is about 20003.2525105294. The cubic root of 400130111 is about 736.8861799047.

Adding to 400130111 its reverse (111031004), we get a palindrome (511161115).

The spelling of 400130111 in words is "four hundred million, one hundred thirty thousand, one hundred eleven".