131011102021 has 8 divisors (see below), whose sum is σ = 146018566080. Its totient is φ = 116814852288.

The previous prime is 131011101989. The next prime is 131011102081. The reversal of 131011102021 is 120201110131.

It is a happy number.

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 131011102021 - 2⁵ = 131011101989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131011101992 and 131011102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131011102081) 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, 202803241 + ... + 202803886.

It is an arithmetic number, because the mean of its divisors is an integer number (18252320760).

Almost surely, 2^131011102021 is an apocalyptic number.

It is an amenable number.

131011102021 is a deficient number, since it is larger than the sum of its proper divisors (15007464059).

131011102021 is a wasteful number, since it uses less digits than its factorization.

131011102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405607163.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 131011102021 its reverse (120201110131), we get a palindrome (251212212152).

The spelling of 131011102021 in words is "one hundred thirty-one billion, eleven million, one hundred two thousand, twenty-one".