403231322221072 has 40 divisors (see below), whose sum is σ = 827254190791800. Its totient is φ = 189747430490112.

The previous prime is 403231322221043. The next prime is 403231322221073. The reversal of 403231322221072 is 270122223132304.

It can be written as a sum of positive squares in 4 ways, for example, as 118285983876096 + 284945338344976 = 10875936^2 + 16880324^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (403231322221073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27052297 + ... + 39221032.

It is an arithmetic number, because the mean of its divisors is an integer number (20681354769795).

Almost surely, 2^{403231322221072} is an apocalyptic number.

It is an amenable number.

403231322221072 is an abundant number, since it is smaller than the sum of its proper divisors (424022868570728).

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

403231322221072 is a wasteful number, since it uses less digits than its factorization.

403231322221072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66295723 (or 66295717 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 34.

Adding to 403231322221072 its reverse (270122223132304), we get a palindrome (673353545353376).

The spelling of 403231322221072 in words is "four hundred three trillion, two hundred thirty-one billion, three hundred twenty-two million, two hundred twenty-one thousand, seventy-two".