431401121144 has 32 divisors (see below), whose sum is σ = 925273795680. Its totient is φ = 184717630464.

The previous prime is 431401121113. The next prime is 431401121161. The reversal of 431401121144 is 441121104134.

It is a happy number.

It is a super-2 number, since 2×431401121144² (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 7 ways as a sum of consecutive naturals, for example, 3449777 + ... + 3572640.

It is an arithmetic number, because the mean of its divisors is an integer number (28914806115).

Almost surely, 2^431401121144 is an apocalyptic number.

It is an amenable number.

431401121144 is an abundant number, since it is smaller than the sum of its proper divisors (493872674536).

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

431401121144 is a wasteful number, since it uses less digits than its factorization.

431401121144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7023527 (or 7023523 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 431401121144 its reverse (441121104134), we get a palindrome (872522225278).

The spelling of 431401121144 in words is "four hundred thirty-one billion, four hundred one million, one hundred twenty-one thousand, one hundred forty-four".