102031211111 has 8 divisors (see below), whose sum is σ = 103064087664. Its totient is φ = 100998779200.

The previous prime is 102031211077. The next prime is 102031211131. The reversal of 102031211111 is 111112130201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102031211111 - 2⁶ = 102031211047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102031211131) 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 7 ways as a sum of consecutive naturals, for example, 360155 + ... + 577731.

It is an arithmetic number, because the mean of its divisors is an integer number (12883010958).

Almost surely, 2^102031211111 is an apocalyptic number.

102031211111 is a deficient number, since it is larger than the sum of its proper divisors (1032876553).

102031211111 is a wasteful number, since it uses less digits than its factorization.

102031211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222321.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 102031211111 its reverse (111112130201), we get a palindrome (213143341312).

The spelling of 102031211111 in words is "one hundred two billion, thirty-one million, two hundred eleven thousand, one hundred eleven".