1211102034231 has 16 divisors (see below), whose sum is σ = 1632235887360. Its totient is φ = 798701648640.

The previous prime is 1211102034229. The next prime is 1211102034253. The reversal of 1211102034231 is 1324302011121.

It is not a de Polignac number, because 1211102034231 - 2¹ = 1211102034229 is a prime.

It is a super-2 number, since 2×1211102034231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211102034198 and 1211102034207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211102034931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1822425 + ... + 2396546.

It is an arithmetic number, because the mean of its divisors is an integer number (102014742960).

Almost surely, 2^{1211102034231} is an apocalyptic number.

1211102034231 is a deficient number, since it is larger than the sum of its proper divisors (421133853129).

1211102034231 is a wasteful number, since it uses less digits than its factorization.

1211102034231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220006.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1211102034231 its reverse (1324302011121), we get a palindrome (2535404045352).

The spelling of 1211102034231 in words is "one trillion, two hundred eleven billion, one hundred two million, thirty-four thousand, two hundred thirty-one".