402111341 has 4 divisors (see below), whose sum is σ = 402164412. Its totient is φ = 402058272.

The previous prime is 402111299. The next prime is 402111349. The reversal of 402111341 is 143111204.

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 175006441 + 227104900 = 13229^2 + 15070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402111341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402111349) 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, 12800 + ... + 31113.

It is an arithmetic number, because the mean of its divisors is an integer number (100541103).

Almost surely, 2^402111341 is an apocalyptic number.

It is an amenable number.

402111341 is a deficient number, since it is larger than the sum of its proper divisors (53071).

402111341 is an equidigital number, since it uses as much as digits as its factorization.

402111341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53070.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 402111341 is about 20052.7140557083. The cubic root of 402111341 is about 738.1003999441.

Adding to 402111341 its reverse (143111204), we get a palindrome (545222545).

The spelling of 402111341 in words is "four hundred two million, one hundred eleven thousand, three hundred forty-one".