30202112113231 has 4 divisors (see below), whose sum is σ = 30714012318600. Its totient is φ = 29690211907864.

The previous prime is 30202112113211. The next prime is 30202112113237. The reversal of 30202112113231 is 13231121120203.

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 30202112113231 - 2²¹ = 30202110016079 is a prime.

It is a super-2 number, since 2×30202112113231² (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 (30202112113237) 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, 255950102596 + ... + 255950102713.

It is an arithmetic number, because the mean of its divisors is an integer number (7678503079650).

Almost surely, 2^{30202112113231} is an apocalyptic number.

30202112113231 is a deficient number, since it is larger than the sum of its proper divisors (511900205369).

30202112113231 is an equidigital number, since it uses as much as digits as its factorization.

30202112113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511900205368.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 30202112113231 its reverse (13231121120203), we get a palindrome (43433233233434).

The spelling of 30202112113231 in words is "thirty trillion, two hundred two billion, one hundred twelve million, one hundred thirteen thousand, two hundred thirty-one".