1211003120030 has 16 divisors (see below), whose sum is σ = 2377969763184. Its totient is φ = 440364770880.

The previous prime is 1211003120027. The next prime is 1211003120059. The reversal of 1211003120030 is 300213001121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1211003119987 and 1211003120014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5504559527 + ... + 5504559746.

It is an arithmetic number, because the mean of its divisors is an integer number (148623110199).

Almost surely, 2^{1211003120030} is an apocalyptic number.

1211003120030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211003120030 is a deficient number, since it is larger than the sum of its proper divisors (1166966643154).

1211003120030 is a wasteful number, since it uses less digits than its factorization.

1211003120030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11009119291.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1211003120030 its reverse (300213001121), we get a palindrome (1511216121151).

The spelling of 1211003120030 in words is "one trillion, two hundred eleven billion, three million, one hundred twenty thousand, thirty".