20154132130 has 32 divisors (see below), whose sum is σ = 39583608768. Its totient is φ = 7327252800.

The previous prime is 20154132113. The next prime is 20154132157. The reversal of 20154132130 is 3123145102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 605625 + ... + 638035.

It is an arithmetic number, because the mean of its divisors is an integer number (1236987774).

Almost surely, 2^20154132130 is an apocalyptic number.

20154132130 is a deficient number, since it is larger than the sum of its proper divisors (19429476638).

20154132130 is a wasteful number, since it uses less digits than its factorization.

20154132130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38082.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 20154132130 its reverse (3123145102), we get a palindrome (23277277232).

The spelling of 20154132130 in words is "twenty billion, one hundred fifty-four million, one hundred thirty-two thousand, one hundred thirty".