131211222023432 has 32 divisors (see below), whose sum is σ = 253971644209920. Its totient is φ = 63485690905920.

The previous prime is 131211222023407. The next prime is 131211222023489. The reversal of 131211222023432 is 234320222112131.

It is a junction number, because it is equal to n+sod(n) for n = 131211222023395 and 131211222023404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10669118 + ... + 19397229.

It is an arithmetic number, because the mean of its divisors is an integer number (7936613881560).

Almost surely, 2^{131211222023432} is an apocalyptic number.

It is an amenable number.

131211222023432 is a deficient number, since it is larger than the sum of its proper divisors (122760422186488).

131211222023432 is a wasteful number, since it uses less digits than its factorization.

131211222023432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30083981 (or 30083977 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 131211222023432 its reverse (234320222112131), we get a palindrome (365531444135563).

The spelling of 131211222023432 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred twenty-two million, twenty-three thousand, four hundred thirty-two".