1211103132030 has 48 divisors (see below), whose sum is σ = 3435128886384. Its totient is φ = 293600759040.

The previous prime is 1211103131989. The next prime is 1211103132077. The reversal of 1211103132030 is 302313011121.

1211103132030 is a `hidden beast` number, since 1 + 211 + 103 + 1 + 320 + 30 = 666.

It is a super-2 number, since 2×1211103132030² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1211103131994 and 1211103132012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 611667259 + ... + 611669238.

It is an arithmetic number, because the mean of its divisors is an integer number (71565185133).

Almost surely, 2^{1211103132030} is an apocalyptic number.

1211103132030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211103132030 is an abundant number, since it is smaller than the sum of its proper divisors (2224025754354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211103132030 is a wasteful number, since it uses less digits than its factorization.

1211103132030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223336521 (or 1223336518 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1211103132030 its reverse (302313011121), we get a palindrome (1513416143151).

The spelling of 1211103132030 in words is "one trillion, two hundred eleven billion, one hundred three million, one hundred thirty-two thousand, thirty".