30040221131 has 4 divisors (see below), whose sum is σ = 30315819600. Its totient is φ = 29764622664.

The previous prime is 30040221067. The next prime is 30040221157. The reversal of 30040221131 is 13112204003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30040221131 - 2⁶ = 30040221067 is a prime.

It is a super-2 number, since 2×30040221131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30040227131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137799071 + ... + 137799288.

It is an arithmetic number, because the mean of its divisors is an integer number (7578954900).

Almost surely, 2^30040221131 is an apocalyptic number.

30040221131 is a deficient number, since it is larger than the sum of its proper divisors (275598469).

30040221131 is a wasteful number, since it uses less digits than its factorization.

30040221131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275598468.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30040221131 its reverse (13112204003), we get a palindrome (43152425134).

The spelling of 30040221131 in words is "thirty billion, forty million, two hundred twenty-one thousand, one hundred thirty-one".