102231121213 has 24 divisors (see below), whose sum is σ = 116939078880. Its totient is φ = 89083800000.

The previous prime is 102231121207. The next prime is 102231121247. The reversal of 102231121213 is 312121132201.

It is not a de Polignac number, because 102231121213 - 2²¹ = 102229024061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102231127213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 852463 + ... + 964963.

It is an arithmetic number, because the mean of its divisors is an integer number (4872461620).

Almost surely, 2^102231121213 is an apocalyptic number.

102231121213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

102231121213 is a deficient number, since it is larger than the sum of its proper divisors (14707957667).

102231121213 is a wasteful number, since it uses less digits than its factorization.

102231121213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112829 (or 112816 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 102231121213 its reverse (312121132201), we get a palindrome (414352253414).

The spelling of 102231121213 in words is "one hundred two billion, two hundred thirty-one million, one hundred twenty-one thousand, two hundred thirteen".