131121213024 has 24 divisors (see below), whose sum is σ = 344193184440. Its totient is φ = 43707070976.

The previous prime is 131121213023. The next prime is 131121213037. The reversal of 131121213024 is 420312121131.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131121213023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682922889 + ... + 682923080.

It is an arithmetic number, because the mean of its divisors is an integer number (14341382685).

Almost surely, 2^131121213024 is an apocalyptic number.

It is an amenable number.

131121213024 is an abundant number, since it is smaller than the sum of its proper divisors (213071971416).

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

131121213024 is a wasteful number, since it uses less digits than its factorization.

131121213024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365845982 (or 1365845974 counting only the distinct ones).

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

Adding to 131121213024 its reverse (420312121131), we get a palindrome (551433334155).

The spelling of 131121213024 in words is "one hundred thirty-one billion, one hundred twenty-one million, two hundred thirteen thousand, twenty-four".