131201421004424 has 32 divisors (see below), whose sum is σ = 257674472161920. Its totient is φ = 62509918200576.

The previous prime is 131201421004411. The next prime is 131201421004429. The reversal of 131201421004424 is 424400124102131.

It is a super-2 number, since 2×131201421004424² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131201421004429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1355562257 + ... + 1355659040.

It is an arithmetic number, because the mean of its divisors is an integer number (8052327255060).

Almost surely, 2^{131201421004424} is an apocalyptic number.

It is an amenable number.

131201421004424 is a deficient number, since it is larger than the sum of its proper divisors (126473051157496).

131201421004424 is a wasteful number, since it uses less digits than its factorization.

131201421004424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2711221589 (or 2711221585 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 131201421004424 its reverse (424400124102131), we get a palindrome (555601545106555).

The spelling of 131201421004424 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred twenty-one million, four thousand, four hundred twenty-four".