40030230121 has 4 divisors (see below), whose sum is σ = 45748834432. Its totient is φ = 34311625812.

The previous prime is 40030230109. The next prime is 40030230173. The reversal of 40030230121 is 12103203004.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40030230121 - 2¹⁷ = 40030099049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40030230095 and 40030230104.

It is not an unprimeable number, because it can be changed into a prime (40030230521) 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, 2859302145 + ... + 2859302158.

It is an arithmetic number, because the mean of its divisors is an integer number (11437208608).

Almost surely, 2^40030230121 is an apocalyptic number.

It is an amenable number.

40030230121 is a deficient number, since it is larger than the sum of its proper divisors (5718604311).

40030230121 is an equidigital number, since it uses as much as digits as its factorization.

40030230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718604310.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 40030230121 its reverse (12103203004), we get a palindrome (52133433125).

The spelling of 40030230121 in words is "forty billion, thirty million, two hundred thirty thousand, one hundred twenty-one".