101231322013 has 4 divisors (see below), whose sum is σ = 103585538848. Its totient is φ = 98877105180.

The previous prime is 101231321993. The next prime is 101231322037. The reversal of 101231322013 is 310223132101.

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: 310223132101 = 8819 ⋅35176679.

It is a cyclic number.

It is not a de Polignac number, because 101231322013 - 2⁹ = 101231321501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101231322043) 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, 1177108353 + ... + 1177108438.

It is an arithmetic number, because the mean of its divisors is an integer number (25896384712).

Almost surely, 2^101231322013 is an apocalyptic number.

It is an amenable number.

101231322013 is a deficient number, since it is larger than the sum of its proper divisors (2354216835).

101231322013 is an equidigital number, since it uses as much as digits as its factorization.

101231322013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354216834.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 101231322013 its reverse (310223132101), we get a palindrome (411454454114).

The spelling of 101231322013 in words is "one hundred one billion, two hundred thirty-one million, three hundred twenty-two thousand, thirteen".