30013031211123 has 48 divisors (see below), whose sum is σ = 41925496056480. Its totient is φ = 19093822917120.

The previous prime is 30013031211073. The next prime is 30013031211143. The reversal of 30013031211123 is 32111213031003.

It is a happy number.

It is not a de Polignac number, because 30013031211123 - 2⁸ = 30013031210867 is a prime.

It is a super-2 number, since 2×30013031211123² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30013031211123.

It is not an unprimeable number, because it can be changed into a prime (30013031211143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1172875213 + ... + 1172900801.

It is an arithmetic number, because the mean of its divisors is an integer number (873447834510).

Almost surely, 2^{30013031211123} is an apocalyptic number.

30013031211123 is a deficient number, since it is larger than the sum of its proper divisors (11912464845357).

30013031211123 is a wasteful number, since it uses less digits than its factorization.

30013031211123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31300 (or 31269 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 30013031211123 its reverse (32111213031003), we get a palindrome (62124244242126).

The spelling of 30013031211123 in words is "thirty trillion, thirteen billion, thirty-one million, two hundred eleven thousand, one hundred twenty-three".