402130111 has 4 divisors (see below), whose sum is σ = 402221224. Its totient is φ = 402039000.

The previous prime is 402130093. The next prime is 402130139. The reversal of 402130111 is 111031204.

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

It is a cyclic number.

It is not a de Polignac number, because 402130111 - 2¹⁹ = 401605823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402130091 and 402130100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402130151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38580 + ... + 47881.

It is an arithmetic number, because the mean of its divisors is an integer number (100555306).

Almost surely, 2^402130111 is an apocalyptic number.

402130111 is a deficient number, since it is larger than the sum of its proper divisors (91113).

402130111 is an equidigital number, since it uses as much as digits as its factorization.

402130111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91112.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 402130111 is about 20053.1820666946. The cubic root of 402130111 is about 738.1118842666. Note that the first 3 decimals are identical.

Adding to 402130111 its reverse (111031204), we get a palindrome (513161315).

The spelling of 402130111 in words is "four hundred two million, one hundred thirty thousand, one hundred eleven".