1211031011032 has 64 divisors (see below), whose sum is σ = 2477935152000. Its totient is φ = 552653991936.

The previous prime is 1211031010963. The next prime is 1211031011077. The reversal of 1211031011032 is 2301101301121.

It is a happy number.

It is a super-2 number, since 2×1211031011032² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211031010997 and 1211031011015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172357 + ... + 1565812.

It is an arithmetic number, because the mean of its divisors is an integer number (38717736750).

Almost surely, 2^{1211031011032} is an apocalyptic number.

It is an amenable number.

1211031011032 is an abundant number, since it is smaller than the sum of its proper divisors (1266904140968).

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

1211031011032 is a wasteful number, since it uses less digits than its factorization.

1211031011032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738348 (or 1738344 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1211031011032 its reverse (2301101301121), we get a palindrome (3512132312153).

The spelling of 1211031011032 in words is "one trillion, two hundred eleven billion, thirty-one million, eleven thousand, thirty-two".