102136121426 has 16 divisors (see below), whose sum is σ = 153724970880. Its totient is φ = 50894525280.

The previous prime is 102136121401. The next prime is 102136121453. The reversal of 102136121426 is 624121631201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4441430 + ... + 4464366.

It is an arithmetic number, because the mean of its divisors is an integer number (9607810680).

Almost surely, 2^102136121426 is an apocalyptic number.

102136121426 is a deficient number, since it is larger than the sum of its proper divisors (51588849454).

102136121426 is a wasteful number, since it uses less digits than its factorization.

102136121426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30409.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 102136121426 its reverse (624121631201), we get a palindrome (726257752627).

The spelling of 102136121426 in words is "one hundred two billion, one hundred thirty-six million, one hundred twenty-one thousand, four hundred twenty-six".