31324101400 has 96 divisors (see below), whose sum is σ = 77358486240. Its totient is φ = 11754997760.

The previous prime is 31324101331. The next prime is 31324101409. The reversal of 31324101400 is 410142313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31324101409) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1063269 + ... + 1092331.

It is an arithmetic number, because the mean of its divisors is an integer number (805817565).

Almost surely, 2^31324101400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31324101400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38679243120).

31324101400 is an abundant number, since it is smaller than the sum of its proper divisors (46034384840).

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

31324101400 is a wasteful number, since it uses less digits than its factorization.

31324101400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29413 (or 29404 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31324101400 its reverse (410142313), we get a palindrome (31734243713).

The spelling of 31324101400 in words is "thirty-one billion, three hundred twenty-four million, one hundred one thousand, four hundred".