1211432234100 has 144 divisors (see below), whose sum is σ = 3989969625600. Its totient is φ = 280911804800.

The previous prime is 1211432234093. The next prime is 1211432234119. The reversal of 1211432234100 is 14322341121.

It is a super-3 number, since 3×1211432234100³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7904550 + ... + 8056349.

It is an arithmetic number, because the mean of its divisors is an integer number (27708122400).

Almost surely, 2^{1211432234100} is an apocalyptic number.

1211432234100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1211432234100 is an abundant number, since it is smaller than the sum of its proper divisors (2778537391500).

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

1211432234100 is a wasteful number, since it uses less digits than its factorization.

1211432234100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15960950 (or 15960943 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1211432234100 its reverse (14322341121), we get a palindrome (1225754575221).

The spelling of 1211432234100 in words is "one trillion, two hundred eleven billion, four hundred thirty-two million, two hundred thirty-four thousand, one hundred".