30311231123 has 8 divisors (see below), whose sum is σ = 30483288288. Its totient is φ = 30139329024.

The previous prime is 30311231089. The next prime is 30311231147. The reversal of 30311231123 is 32113211303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30311231123 - 2¹⁸ = 30310968979 is a prime.

It is a super-2 number, since 2×30311231123² (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 = 30311231095 and 30311231104.

It is not an unprimeable number, because it can be changed into a prime (30311231323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365165 + ... + 440417.

It is an arithmetic number, because the mean of its divisors is an integer number (3810411036).

Almost surely, 2^30311231123 is an apocalyptic number.

30311231123 is a deficient number, since it is larger than the sum of its proper divisors (172057165).

30311231123 is a wasteful number, since it uses less digits than its factorization.

30311231123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77533.

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

Adding to 30311231123 its reverse (32113211303), we get a palindrome (62424442426).

The spelling of 30311231123 in words is "thirty billion, three hundred eleven million, two hundred thirty-one thousand, one hundred twenty-three".