402115011 has 4 divisors (see below), whose sum is σ = 536153352. Its totient is φ = 268076672.

The previous prime is 402115009. The next prime is 402115013. The reversal of 402115011 is 110511204.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (402115009) and next prime (402115013).

It is a cyclic number.

It is not a de Polignac number, because 402115011 - 2¹ = 402115009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402115013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67019166 + ... + 67019171.

It is an arithmetic number, because the mean of its divisors is an integer number (134038338).

Almost surely, 2^402115011 is an apocalyptic number.

402115011 is a deficient number, since it is larger than the sum of its proper divisors (134038341).

402115011 is a wasteful number, since it uses less digits than its factorization.

402115011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134038340.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 402115011 is about 20052.8055643094. The cubic root of 402115011 is about 738.1026454418.

Adding to 402115011 its reverse (110511204), we get a palindrome (512626215).

The spelling of 402115011 in words is "four hundred two million, one hundred fifteen thousand, eleven".