30000121133231 has 4 divisors (see below), whose sum is σ = 30007175010312. Its totient is φ = 29993067256152.

The previous prime is 30000121133071. The next prime is 30000121133233. The reversal of 30000121133231 is 13233112100003.

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 30000121133231 - 2¹⁰ = 30000121132207 is a prime.

It is a super-2 number, since 2×30000121133231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000121133233) 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, 3526932161 + ... + 3526940666.

It is an arithmetic number, because the mean of its divisors is an integer number (7501793752578).

Almost surely, 2^{30000121133231} is an apocalyptic number.

30000121133231 is a deficient number, since it is larger than the sum of its proper divisors (7053877081).

30000121133231 is an equidigital number, since it uses as much as digits as its factorization.

30000121133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7053877080.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30000121133231 its reverse (13233112100003), we get a palindrome (43233233233234).

The spelling of 30000121133231 in words is "thirty trillion, one hundred twenty-one million, one hundred thirty-three thousand, two hundred thirty-one".