131220001033 has 8 divisors (see below), whose sum is σ = 146478141216. Its totient is φ = 116516702400.

The previous prime is 131220001021. The next prime is 131220001037. The reversal of 131220001033 is 330100022131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131220001033 - 2⁹ = 131220000521 is a prime.

It is a super-2 number, since 2×131220001033² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131220000998 and 131220001016.

It is not an unprimeable number, because it can be changed into a prime (131220001037) 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, 138709888 + ... + 138710833.

It is an arithmetic number, because the mean of its divisors is an integer number (18309767652).

Almost surely, 2^131220001033 is an apocalyptic number.

It is an amenable number.

131220001033 is a deficient number, since it is larger than the sum of its proper divisors (15258140183).

131220001033 is a wasteful number, since it uses less digits than its factorization.

131220001033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277420775.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 131220001033 its reverse (330100022131), we get a palindrome (461320023164).

The spelling of 131220001033 in words is "one hundred thirty-one billion, two hundred twenty million, one thousand, thirty-three".