401311240242 has 32 divisors (see below), whose sum is σ = 882272058624. Its totient is φ = 120681147600.

The previous prime is 401311240171. The next prime is 401311240247. The reversal of 401311240242 is 242042113104.

It is a super-2 number, since 2×401311240242² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401311240247) 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, 23199268 + ... + 23216559.

It is an arithmetic number, because the mean of its divisors is an integer number (27571001832).

Almost surely, 2^401311240242 is an apocalyptic number.

401311240242 is an abundant number, since it is smaller than the sum of its proper divisors (480960818382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401311240242 is a wasteful number, since it uses less digits than its factorization.

401311240242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46415974.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 401311240242 its reverse (242042113104), we get a palindrome (643353353346).

The spelling of 401311240242 in words is "four hundred one billion, three hundred eleven million, two hundred forty thousand, two hundred forty-two".