40123202130 has 48 divisors (see below), whose sum is σ = 113803994304. Its totient is φ = 9726836640.

The previous prime is 40123202099. The next prime is 40123202131. The reversal of 40123202130 is 3120232104.

40123202130 is a `hidden beast` number, since 401 + 232 + 0 + 2 + 1 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (40123202131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20263254 + ... + 20265233.

It is an arithmetic number, because the mean of its divisors is an integer number (2370916548).

Almost surely, 2^40123202130 is an apocalyptic number.

40123202130 is an abundant number, since it is smaller than the sum of its proper divisors (73680792174).

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

40123202130 is a wasteful number, since it uses less digits than its factorization.

40123202130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40528511 (or 40528508 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 40123202130 its reverse (3120232104), we get a palindrome (43243434234).

The spelling of 40123202130 in words is "forty billion, one hundred twenty-three million, two hundred two thousand, one hundred thirty".