102443021142 has 64 divisors (see below), whose sum is σ = 256345288704. Its totient is φ = 26514519840.

The previous prime is 102443021141. The next prime is 102443021143. The reversal of 102443021142 is 241120344201.

It is an interprime number because it is at equal distance from previous prime (102443021141) and next prime (102443021143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102443021141) 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, 261018 + ... + 522509.

It is an arithmetic number, because the mean of its divisors is an integer number (4005395136).

Almost surely, 2^102443021142 is an apocalyptic number.

102443021142 is an abundant number, since it is smaller than the sum of its proper divisors (153902267562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102443021142 is a wasteful number, since it uses less digits than its factorization.

102443021142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783833.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 102443021142 its reverse (241120344201), we get a palindrome (343563365343).

The spelling of 102443021142 in words is "one hundred two billion, four hundred forty-three million, twenty-one thousand, one hundred forty-two".