102100213312331 has 4 divisors (see below), whose sum is σ = 109954075874832. Its totient is φ = 94246350749832.

The previous prime is 102100213312297. The next prime is 102100213312333. The reversal of 102100213312331 is 133213312001201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102100213312331 - 2¹⁴ = 102100213295947 is a prime.

It is a super-2 number, since 2×102100213312331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102100213312297 and 102100213312306.

It is not an unprimeable number, because it can be changed into a prime (102100213312333) 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, 3926931281231 + ... + 3926931281256.

It is an arithmetic number, because the mean of its divisors is an integer number (27488518968708).

Almost surely, 2^{102100213312331} is an apocalyptic number.

102100213312331 is a deficient number, since it is larger than the sum of its proper divisors (7853862562501).

102100213312331 is an equidigital number, since it uses as much as digits as its factorization.

102100213312331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7853862562500.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 102100213312331 its reverse (133213312001201), we get a palindrome (235313525313532).

The spelling of 102100213312331 in words is "one hundred two trillion, one hundred billion, two hundred thirteen million, three hundred twelve thousand, three hundred thirty-one".