431043153421 has 16 divisors (see below), whose sum is σ = 480620736000. Its totient is φ = 384174793728.

The previous prime is 431043153419. The next prime is 431043153427. The reversal of 431043153421 is 124351340134.

It is a cyclic number.

It is not a de Polignac number, because 431043153421 - 2¹ = 431043153419 is a prime.

It is a super-2 number, since 2×431043153421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431043153427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496741 + ... + 1053013.

It is an arithmetic number, because the mean of its divisors is an integer number (30038796000).

Almost surely, 2^431043153421 is an apocalyptic number.

It is an amenable number.

431043153421 is a deficient number, since it is larger than the sum of its proper divisors (49577582579).

431043153421 is a wasteful number, since it uses less digits than its factorization.

431043153421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558708.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 431043153421 its reverse (124351340134), we get a palindrome (555394493555).

The spelling of 431043153421 in words is "four hundred thirty-one billion, forty-three million, one hundred fifty-three thousand, four hundred twenty-one".