101312021202123 has 16 divisors (see below), whose sum is σ = 147095493580800. Its totient is φ = 61780107301920.

The previous prime is 101312021202113. The next prime is 101312021202131. The reversal of 101312021202123 is 321202120213101.

It is not a de Polignac number, because 101312021202123 - 2⁶ = 101312021202059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101312021202123.

It is not an unprimeable number, because it can be changed into a prime (101312021202113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30644892843 + ... + 30644896148.

It is an arithmetic number, because the mean of its divisors is an integer number (9193468348800).

Almost surely, 2^{101312021202123} is an apocalyptic number.

101312021202123 is a deficient number, since it is larger than the sum of its proper divisors (45783472378677).

101312021202123 is a wasteful number, since it uses less digits than its factorization.

101312021202123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61289789042.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 101312021202123 its reverse (321202120213101), we get a palindrome (422514141415224).

The spelling of 101312021202123 in words is "one hundred one trillion, three hundred twelve billion, twenty-one million, two hundred two thousand, one hundred twenty-three".