102213523541 has 4 divisors (see below), whose sum is σ = 104590582272. Its totient is φ = 99836464812.

The previous prime is 102213523537. The next prime is 102213523571. The reversal of 102213523541 is 145325312201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102213523541 - 2² = 102213523537 is a prime.

It is a super-2 number, since 2×102213523541² (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 (102213523571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1188529301 + ... + 1188529386.

It is an arithmetic number, because the mean of its divisors is an integer number (26147645568).

Almost surely, 2^102213523541 is an apocalyptic number.

It is an amenable number.

102213523541 is a deficient number, since it is larger than the sum of its proper divisors (2377058731).

102213523541 is an equidigital number, since it uses as much as digits as its factorization.

102213523541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377058730.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 102213523541 its reverse (145325312201), we get a palindrome (247538835742).

The spelling of 102213523541 in words is "one hundred two billion, two hundred thirteen million, five hundred twenty-three thousand, five hundred forty-one".