30155121119 has 6 divisors (see below), whose sum is σ = 30908552400. Its totient is φ = 29419628720.

The previous prime is 30155121107. The next prime is 30155121121. The reversal of 30155121119 is 91112155103.

It is a de Polignac number, because none of the positive numbers 2^k-30155121119 is a prime.

It is a super-2 number, since 2×30155121119² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30155121091 and 30155121100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30155121149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8967719 + ... + 8971080.

It is an arithmetic number, because the mean of its divisors is an integer number (5151425400).

Almost surely, 2^30155121119 is an apocalyptic number.

30155121119 is a deficient number, since it is larger than the sum of its proper divisors (753431281).

30155121119 is an equidigital number, since it uses as much as digits as its factorization.

30155121119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17938881 (or 17938840 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 29.

The spelling of 30155121119 in words is "thirty billion, one hundred fifty-five million, one hundred twenty-one thousand, one hundred nineteen".