101112123213 has 6 divisors (see below), whose sum is σ = 146050844654. Its totient is φ = 67408082136.

The previous prime is 101112123209. The next prime is 101112123223. The reversal of 101112123213 is 312321211101.

It can be written as a sum of positive squares in only one way, i.e., 92466470889 + 8645652324 = 304083^2 + 92982^2 .

It is not a de Polignac number, because 101112123213 - 2² = 101112123209 is a prime.

It is a super-2 number, since 2×101112123213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101112123223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5617340170 + ... + 5617340187.

Almost surely, 2^101112123213 is an apocalyptic number.

It is an amenable number.

101112123213 is a deficient number, since it is larger than the sum of its proper divisors (44938721441).

101112123213 is a wasteful number, since it uses less digits than its factorization.

101112123213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11234680363 (or 11234680360 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 101112123213 its reverse (312321211101), we get a palindrome (413433334314).

The spelling of 101112123213 in words is "one hundred one billion, one hundred twelve million, one hundred twenty-three thousand, two hundred thirteen".