401531251134 has 32 divisors (see below), whose sum is σ = 879494797440. Its totient is φ = 121454040672.

The previous prime is 401531251013. The next prime is 401531251151. The reversal of 401531251134 is 431152135104.

It is a super-2 number, since 2×401531251134² (a number of 24 digits) contains 22 as substring.

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, 43621132 + ... + 43630335.

It is an arithmetic number, because the mean of its divisors is an integer number (27484212420).

Almost surely, 2^401531251134 is an apocalyptic number.

401531251134 is an abundant number, since it is smaller than the sum of its proper divisors (477963546306).

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

401531251134 is a wasteful number, since it uses less digits than its factorization.

401531251134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87251544.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 401531251134 its reverse (431152135104), we get a palindrome (832683386238).

The spelling of 401531251134 in words is "four hundred one billion, five hundred thirty-one million, two hundred fifty-one thousand, one hundred thirty-four".