32432023421 has 6 divisors (see below), whose sum is σ = 37727047710. Its totient is φ = 27798877176.

The previous prime is 32432023399. The next prime is 32432023427. The reversal of 32432023421 is 12432023423.

It can be written as a sum of positive squares in only one way, i.e., 31867248196 + 564775225 = 178514^2 + 23765^2 .

It is not a de Polignac number, because 32432023421 - 2³⁰ = 31358281597 is a prime.

It is a super-2 number, since 2×32432023421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32432023427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 330938966 + ... + 330939063.

It is an arithmetic number, because the mean of its divisors is an integer number (6287841285).

Almost surely, 2^32432023421 is an apocalyptic number.

It is an amenable number.

32432023421 is a deficient number, since it is larger than the sum of its proper divisors (5295024289).

32432023421 is an equidigital number, since it uses as much as digits as its factorization.

32432023421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661878043 (or 661878036 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 32432023421 its reverse (12432023423), we get a palindrome (44864046844).

The spelling of 32432023421 in words is "thirty-two billion, four hundred thirty-two million, twenty-three thousand, four hundred twenty-one".