101213103123 has 80 divisors (see below), whose sum is σ = 175360432896. Its totient is φ = 57566583360.

The previous prime is 101213103107. The next prime is 101213103137. The reversal of 101213103123 is 321301312101.

It is not a de Polignac number, because 101213103123 - 2⁴ = 101213103107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101213103096 and 101213103105.

It is not an unprimeable number, because it can be changed into a prime (101213103163) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1039536 + ... + 1132722.

Almost surely, 2^101213103123 is an apocalyptic number.

101213103123 is a deficient number, since it is larger than the sum of its proper divisors (74147329773).

101213103123 is a wasteful number, since it uses less digits than its factorization.

101213103123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93286 (or 93277 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 101213103123 its reverse (321301312101), we get a palindrome (422514415224).

The spelling of 101213103123 in words is "one hundred one billion, two hundred thirteen million, one hundred three thousand, one hundred twenty-three".