132313021 has 4 divisors (see below), whose sum is σ = 135390112. Its totient is φ = 129235932.

The previous prime is 132313019. The next prime is 132313033. The reversal of 132313021 is 120313231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120313231 = 83 ⋅1449557.

It is a cyclic number.

It is not a de Polignac number, because 132313021 - 2¹ = 132313019 is a prime.

It is a super-2 number, since 2×132313021² = 35013471052292882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132312986 and 132313004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132313061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1538481 + ... + 1538566.

It is an arithmetic number, because the mean of its divisors is an integer number (33847528).

Almost surely, 2^132313021 is an apocalyptic number.

It is an amenable number.

132313021 is a deficient number, since it is larger than the sum of its proper divisors (3077091).

132313021 is an equidigital number, since it uses as much as digits as its factorization.

132313021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3077090.

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

The square root of 132313021 is about 11502.7397171283. The cubic root of 132313021 is about 509.5664917974.

Adding to 132313021 its reverse (120313231), we get a palindrome (252626252).

The spelling of 132313021 in words is "one hundred thirty-two million, three hundred thirteen thousand, twenty-one".