102311143011 has 80 divisors (see below), whose sum is σ = 193158839808. Its totient is φ = 52420348800.

The previous prime is 102311143009. The next prime is 102311143013. The reversal of 102311143011 is 110341113201.

It is a happy number.

102311143011 is a `hidden beast` number, since 1 + 0 + 231 + 1 + 1 + 430 + 1 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (102311143009) and next prime (102311143013).

It is not a de Polignac number, because 102311143011 - 2¹ = 102311143009 is a prime.

It is a super-2 number, since 2×102311143011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102311143013) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 342946 + ... + 567656.

Almost surely, 2^102311143011 is an apocalyptic number.

102311143011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102311143011 is a deficient number, since it is larger than the sum of its proper divisors (90847696797).

102311143011 is a wasteful number, since it uses less digits than its factorization.

102311143011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224814 (or 224805 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 102311143011 its reverse (110341113201), we get a palindrome (212652256212).

The spelling of 102311143011 in words is "one hundred two billion, three hundred eleven million, one hundred forty-three thousand, eleven".