20154420130 has 32 divisors (see below), whose sum is σ = 39709052208. Its totient is φ = 7319635200.

The previous prime is 20154420053. The next prime is 20154420157. The reversal of 20154420130 is 3102445102.

It can be written as a sum of positive squares in 8 ways, for example, as 13417569 + 20141002561 = 3663^2 + 141919^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1262841 + ... + 1278700.

Almost surely, 2^20154420130 is an apocalyptic number.

20154420130 is a deficient number, since it is larger than the sum of its proper divisors (19554632078).

20154420130 is a wasteful number, since it uses less digits than its factorization.

20154420130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541622.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 20154420130 its reverse (3102445102), we get a palindrome (23256865232).

The spelling of 20154420130 in words is "twenty billion, one hundred fifty-four million, four hundred twenty thousand, one hundred thirty".