402142240411 has 2 divisors, whose sum is σ = 402142240412. Its totient is φ = 402142240410.

The previous prime is 402142240399. The next prime is 402142240427. The reversal of 402142240411 is 114042241204.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402142240411 - 2¹¹ = 402142238363 is a prime.

It is not a weakly prime, because it can be changed into another prime (402142246411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201071120205 + 201071120206.

It is an arithmetic number, because the mean of its divisors is an integer number (201071120206).

Almost surely, 2^402142240411 is an apocalyptic number.

402142240411 is a deficient number, since it is larger than the sum of its proper divisors (1).

402142240411 is an equidigital number, since it uses as much as digits as its factorization.

402142240411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 402142240411 its reverse (114042241204), we get a palindrome (516184481615).

The spelling of 402142240411 in words is "four hundred two billion, one hundred forty-two million, two hundred forty thousand, four hundred eleven".