431123243421420 has 288 divisors, whose sum is σ = 1512515283552000. Its totient is φ = 98301618869760.

The previous prime is 431123243421383. The next prime is 431123243421463. The reversal of 431123243421420 is 24124342321134.

431123243421420 is a `hidden beast` number, since 4 + 3 + 1 + 1 + 2 + 3 + 2 + 434 + 214 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 35993655 + ... + 46452014.

It is an arithmetic number, because the mean of its divisors is an integer number (5251789179000).

Almost surely, 2^{431123243421420} is an apocalyptic number.

It is an amenable number.

431123243421420 is an abundant number, since it is smaller than the sum of its proper divisors (1081392040130580).

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

431123243421420 is a wasteful number, since it uses less digits than its factorization.

431123243421420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82445853 (or 82445848 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 431123243421420 its reverse (24124342321134), we get a palindrome (455247585742554).

The spelling of 431123243421420 in words is "four hundred thirty-one trillion, one hundred twenty-three billion, two hundred forty-three million, four hundred twenty-one thousand, four hundred twenty".