1230002111 has 18 divisors (see below), whose sum is σ = 1358023968. Its totient is φ = 1113534240.

The previous prime is 1230002101. The next prime is 1230002117. The reversal of 1230002111 is 1112000321.

It is a de Polignac number, because none of the positive numbers 2^k-1230002111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230002092 and 1230002101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230002117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 473426 + ... + 476016.

It is an arithmetic number, because the mean of its divisors is an integer number (75445776).

Almost surely, 2^1230002111 is an apocalyptic number.

1230002111 is a deficient number, since it is larger than the sum of its proper divisors (128021857).

1230002111 is an equidigital number, since it uses as much as digits as its factorization.

1230002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723 (or 2657 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1230002111 is about 35071.3859292729. The cubic root of 1230002111 is about 1071.4418826477.

Adding to 1230002111 its reverse (1112000321), we get a palindrome (2342002432).

The spelling of 1230002111 in words is "one billion, two hundred thirty million, two thousand, one hundred eleven".