401320131304 has 8 divisors (see below), whose sum is σ = 752475246210. Its totient is φ = 200660065648.

The previous prime is 401320131269. The next prime is 401320131307. The reversal of 401320131304 is 403131023104.

It can be written as a sum of positive squares in only one way, i.e., 389248714404 + 12071416900 = 623898^2 + 109870^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×401320131304² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401320131307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25082508199 + ... + 25082508214.

Almost surely, 2^401320131304 is an apocalyptic number.

It is an amenable number.

401320131304 is a deficient number, since it is larger than the sum of its proper divisors (351155114906).

401320131304 is a wasteful number, since it uses less digits than its factorization.

401320131304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50165016419 (or 50165016415 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 401320131304 its reverse (403131023104), we get a palindrome (804451154408).

The spelling of 401320131304 in words is "four hundred one billion, three hundred twenty million, one hundred thirty-one thousand, three hundred four".