1211313100124 has 24 divisors (see below), whose sum is σ = 2251572377040. Its totient is φ = 568231483136.

The previous prime is 1211313100093. The next prime is 1211313100177. The reversal of 1211313100124 is 4210013131121.

It is a junction number, because it is equal to n+sod(n) for n = 1211313100096 and 1211313100105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28075334 + ... + 28118445.

It is an arithmetic number, because the mean of its divisors is an integer number (93815515710).

Almost surely, 2^{1211313100124} is an apocalyptic number.

It is an amenable number.

1211313100124 is a deficient number, since it is larger than the sum of its proper divisors (1040259276916).

1211313100124 is a wasteful number, since it uses less digits than its factorization.

1211313100124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56194117 (or 56194115 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1211313100124 its reverse (4210013131121), we get a palindrome (5421326231245).

The spelling of 1211313100124 in words is "one trillion, two hundred eleven billion, three hundred thirteen million, one hundred thousand, one hundred twenty-four".