101231133321 has 4 divisors (see below), whose sum is σ = 134974844432. Its totient is φ = 67487422212.

The previous prime is 101231133313. The next prime is 101231133331. The reversal of 101231133321 is 123331132101.

It is a happy number.

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: 123331132101 = 3 ⋅41110377367.

It is not a de Polignac number, because 101231133321 - 2³ = 101231133313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101231133301) 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, 16871855551 + ... + 16871855556.

It is an arithmetic number, because the mean of its divisors is an integer number (33743711108).

Almost surely, 2^101231133321 is an apocalyptic number.

It is an amenable number.

101231133321 is a deficient number, since it is larger than the sum of its proper divisors (33743711111).

101231133321 is an equidigital number, since it uses as much as digits as its factorization.

101231133321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33743711110.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 101231133321 its reverse (123331132101), we get a palindrome (224562265422).

The spelling of 101231133321 in words is "one hundred one billion, two hundred thirty-one million, one hundred thirty-three thousand, three hundred twenty-one".