31432201223 has 16 divisors (see below), whose sum is σ = 31816542720. Its totient is φ = 31050756000.

The previous prime is 31432201217. The next prime is 31432201291. The reversal of 31432201223 is 32210223413.

It is a cyclic number.

It is not a de Polignac number, because 31432201223 - 2¹⁶ = 31432135687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31432201523) 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, 35436086 + ... + 35436972.

It is an arithmetic number, because the mean of its divisors is an integer number (1988533920).

Almost surely, 2^31432201223 is an apocalyptic number.

31432201223 is a deficient number, since it is larger than the sum of its proper divisors (384341497).

31432201223 is a wasteful number, since it uses less digits than its factorization.

31432201223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31432201223 its reverse (32210223413), we get a palindrome (63642424636).

The spelling of 31432201223 in words is "thirty-one billion, four hundred thirty-two million, two hundred one thousand, two hundred twenty-three".