1211102030 has 32 divisors (see below), whose sum is σ = 2278209024. Its totient is φ = 462676896.

The previous prime is 1211101999. The next prime is 1211102033. The reversal of 1211102030 is 302011121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211102033) 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 15 ways as a sum of consecutive naturals, for example, 163589 + ... + 170831.

It is an arithmetic number, because the mean of its divisors is an integer number (71194032).

Almost surely, 2^1211102030 is an apocalyptic number.

1211102030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211102030 is a deficient number, since it is larger than the sum of its proper divisors (1067106994).

1211102030 is a wasteful number, since it uses less digits than its factorization.

1211102030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8000.

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

The square root of 1211102030 is about 34800.8912242201. The cubic root of 1211102030 is about 1065.9256442874.

Adding to 1211102030 its reverse (302011121), we get a palindrome (1513113151).

Subtracting from 1211102030 its reverse (302011121), we obtain a palindrome (909090909).

The spelling of 1211102030 in words is "one billion, two hundred eleven million, one hundred two thousand, thirty".