431401121019 has 16 divisors (see below), whose sum is σ = 697213933440. Its totient is φ = 261455224680.

The previous prime is 431401120999. The next prime is 431401121051. The reversal of 431401121019 is 910121104134.

431401121019 is a `hidden beast` number, since 4 + 31 + 401 + 1 + 210 + 19 = 666.

431401121019 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 431401121019 - 2⁸ = 431401120763 is a prime.

It is a super-2 number, since 2×431401121019² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 431401120983 and 431401121001.

It is not an unprimeable number, because it can be changed into a prime (431401121069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 726264217 + ... + 726264810.

It is an arithmetic number, because the mean of its divisors is an integer number (43575870840).

Almost surely, 2^431401121019 is an apocalyptic number.

431401121019 is a deficient number, since it is larger than the sum of its proper divisors (265812812421).

431401121019 is a wasteful number, since it uses less digits than its factorization.

431401121019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452529047 (or 1452529041 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The spelling of 431401121019 in words is "four hundred thirty-one billion, four hundred one million, one hundred twenty-one thousand, nineteen".