102443131011 has 32 divisors (see below), whose sum is σ = 152407906560. Its totient is φ = 60772973184.

The previous prime is 102443131001. The next prime is 102443131033. The reversal of 102443131011 is 110131344201.

It is not a de Polignac number, because 102443131011 - 2⁷ = 102443130883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102443131001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 656800 + ... + 797666.

It is an arithmetic number, because the mean of its divisors is an integer number (4762747080).

Almost surely, 2^102443131011 is an apocalyptic number.

102443131011 is a deficient number, since it is larger than the sum of its proper divisors (49964775549).

102443131011 is a wasteful number, since it uses less digits than its factorization.

102443131011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141555.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 102443131011 its reverse (110131344201), we get a palindrome (212574475212).

The spelling of 102443131011 in words is "one hundred two billion, four hundred forty-three million, one hundred thirty-one thousand, eleven".