30120001231 has 4 divisors (see below), whose sum is σ = 30262750264. Its totient is φ = 29977252200.

The previous prime is 30120001217. The next prime is 30120001253. The reversal of 30120001231 is 13210002103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13210002103 = 167 ⋅79101809.

It is a cyclic number.

It is not a de Polignac number, because 30120001231 - 2¹¹ = 30119999183 is a prime.

It is a super-2 number, since 2×30120001231² (a number of 22 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 (30120001211) 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, 71374200 + ... + 71374621.

It is an arithmetic number, because the mean of its divisors is an integer number (7565687566).

Almost surely, 2^30120001231 is an apocalyptic number.

30120001231 is a deficient number, since it is larger than the sum of its proper divisors (142749033).

30120001231 is a wasteful number, since it uses less digits than its factorization.

30120001231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142749032.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30120001231 its reverse (13210002103), we get a palindrome (43330003334).

The spelling of 30120001231 in words is "thirty billion, one hundred twenty million, one thousand, two hundred thirty-one".