402145404311 has 16 divisors (see below), whose sum is σ = 466239713280. Its totient is φ = 339745453920.

The previous prime is 402145404301. The next prime is 402145404317. The reversal of 402145404311 is 113404541204.

It is a cyclic number.

It is not a de Polignac number, because 402145404311 - 2⁶ = 402145404247 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 (402145404317) 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, 1234001 + ... + 1525466.

It is an arithmetic number, because the mean of its divisors is an integer number (29139982080).

Almost surely, 2^402145404311 is an apocalyptic number.

402145404311 is a deficient number, since it is larger than the sum of its proper divisors (64094308969).

402145404311 is a wasteful number, since it uses less digits than its factorization.

402145404311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759774.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 402145404311 its reverse (113404541204), we get a palindrome (515549945515).

The spelling of 402145404311 in words is "four hundred two billion, one hundred forty-five million, four hundred four thousand, three hundred eleven".