32120223231 has 16 divisors (see below), whose sum is σ = 42918882048. Its totient is φ = 21367560000.

The previous prime is 32120223229. The next prime is 32120223241. The reversal of 32120223231 is 13232202123.

It is a happy number.

It is not a de Polignac number, because 32120223231 - 2¹ = 32120223229 is a prime.

It is a super-2 number, since 2×32120223231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32120223198 and 32120223207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32120223221) 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, 6356656 + ... + 6361706.

It is an arithmetic number, because the mean of its divisors is an integer number (2682430128).

Almost surely, 2^32120223231 is an apocalyptic number.

32120223231 is a deficient number, since it is larger than the sum of its proper divisors (10798658817).

32120223231 is a wasteful number, since it uses less digits than its factorization.

32120223231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9182.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 32120223231 its reverse (13232202123), we get a palindrome (45352425354).

The spelling of 32120223231 in words is "thirty-two billion, one hundred twenty million, two hundred twenty-three thousand, two hundred thirty-one".