131320021032021 has 32 divisors (see below), whose sum is σ = 183677631234048. Its totient is φ = 83295096888960.

The previous prime is 131320021031951. The next prime is 131320021032071. The reversal of 131320021032021 is 120230120023131.

It is not a de Polignac number, because 131320021032021 - 2¹¹ = 131320021029973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320021032071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164167185 + ... + 164965161.

It is an arithmetic number, because the mean of its divisors is an integer number (5739925976064).

Almost surely, 2^{131320021032021} is an apocalyptic number.

It is an amenable number.

131320021032021 is a deficient number, since it is larger than the sum of its proper divisors (52357610202027).

131320021032021 is a wasteful number, since it uses less digits than its factorization.

131320021032021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810681.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131320021032021 its reverse (120230120023131), we get a palindrome (251550141055152).

The spelling of 131320021032021 in words is "one hundred thirty-one trillion, three hundred twenty billion, twenty-one million, thirty-two thousand, twenty-one".