102101400102 has 16 divisors (see below), whose sum is σ = 219910708080. Its totient is φ = 31415815392.

The previous prime is 102101400101. The next prime is 102101400109. The reversal of 102101400102 is 201004101201.

It is a happy number.

It is a super-2 number, since 2×102101400102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101400101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654496077 + ... + 654496232.

It is an arithmetic number, because the mean of its divisors is an integer number (13744419255).

Almost surely, 2^102101400102 is an apocalyptic number.

102101400102 is an abundant number, since it is smaller than the sum of its proper divisors (117809307978).

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

102101400102 is a wasteful number, since it uses less digits than its factorization.

102101400102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308992327.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102101400102 its reverse (201004101201), we get a palindrome (303105501303).

The spelling of 102101400102 in words is "one hundred two billion, one hundred one million, four hundred thousand, one hundred two".