20155420130 has 16 divisors (see below), whose sum is σ = 36336190464. Its totient is φ = 8049627120.

The previous prime is 20155420127. The next prime is 20155420151. The reversal of 20155420130 is 3102455102.

It is a junction number, because it is equal to n+sod(n) for n = 20155420096 and 20155420105.

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, 1560866 + ... + 1573725.

It is an arithmetic number, because the mean of its divisors is an integer number (2271011904).

Almost surely, 2^20155420130 is an apocalyptic number.

20155420130 is a deficient number, since it is larger than the sum of its proper divisors (16180770334).

20155420130 is a wasteful number, since it uses less digits than its factorization.

20155420130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3135241.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 20155420130 its reverse (3102455102), we get a palindrome (23257875232).

The spelling of 20155420130 in words is "twenty billion, one hundred fifty-five million, four hundred twenty thousand, one hundred thirty".