431421055203502 has 64 divisors (see below), whose sum is σ = 804706400663424. Its totient is φ = 168907158282240.

The previous prime is 431421055203389. The next prime is 431421055203529. The reversal of 431421055203502 is 205302550124134.

It is a happy number.

It is a super-2 number, since 2×431421055203502² (a number of 30 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 31 ways as a sum of consecutive naturals, for example, 575728552 + ... + 576477412.

It is an arithmetic number, because the mean of its divisors is an integer number (12573537510366).

Almost surely, 2^{431421055203502} is an apocalyptic number.

431421055203502 is a deficient number, since it is larger than the sum of its proper divisors (373285345459922).

431421055203502 is a wasteful number, since it uses less digits than its factorization.

431421055203502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781613.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 431421055203502 in words is "four hundred thirty-one trillion, four hundred twenty-one billion, fifty-five million, two hundred three thousand, five hundred two".