102213011231 has 4 divisors (see below), whose sum is σ = 102321633864. Its totient is φ = 102104388600.

The previous prime is 102213011167. The next prime is 102213011269. The reversal of 102213011231 is 132110312201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132110312201 = 7 ⋅18872901743.

It is a cyclic number.

It is not a de Polignac number, because 102213011231 - 2⁶ = 102213011167 is a prime.

It is a super-2 number, since 2×102213011231² (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 (102213011291) 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 3 ways as a sum of consecutive naturals, for example, 54309905 + ... + 54311786.

It is an arithmetic number, because the mean of its divisors is an integer number (25580408466).

Almost surely, 2^102213011231 is an apocalyptic number.

102213011231 is a deficient number, since it is larger than the sum of its proper divisors (108622633).

102213011231 is an equidigital number, since it uses as much as digits as its factorization.

102213011231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108622632.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 102213011231 its reverse (132110312201), we get a palindrome (234323323432).

The spelling of 102213011231 in words is "one hundred two billion, two hundred thirteen million, eleven thousand, two hundred thirty-one".