431451122043340 has 240 divisors, whose sum is σ = 1060780665881664. Its totient is φ = 147396475699200.

The previous prime is 431451122043329. The next prime is 431451122043353. The reversal of 431451122043340 is 43340221154134.

It is a self number, because there is not a number n which added to its sum of digits gives 431451122043340.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 29630589660 + ... + 29630604220.

Almost surely, 2^{431451122043340} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431451122043340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (530390332940832).

431451122043340 is an abundant number, since it is smaller than the sum of its proper divisors (629329543838324).

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

431451122043340 is a wasteful number, since it uses less digits than its factorization.

431451122043340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16766 (or 16743 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 431451122043340 its reverse (43340221154134), we get a palindrome (474791343197474).

The spelling of 431451122043340 in words is "four hundred thirty-one trillion, four hundred fifty-one billion, one hundred twenty-two million, forty-three thousand, three hundred forty".