401131056342 has 32 divisors (see below), whose sum is σ = 805965189120. Its totient is φ = 133094063520.

The previous prime is 401131056329. The next prime is 401131056383. The reversal of 401131056342 is 243650131104.

It is a super-3 number, since 3×401131056342³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1701867 + ... + 1923177.

It is an arithmetic number, because the mean of its divisors is an integer number (25186412160).

Almost surely, 2^401131056342 is an apocalyptic number.

401131056342 is an abundant number, since it is smaller than the sum of its proper divisors (404834132778).

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

401131056342 is a wasteful number, since it uses less digits than its factorization.

401131056342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222708.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 401131056342 its reverse (243650131104), we get a palindrome (644781187446).

The spelling of 401131056342 in words is "four hundred one billion, one hundred thirty-one million, fifty-six thousand, three hundred forty-two".