31132402400323 has 12 divisors (see below), whose sum is σ = 36215966845800. Its totient is φ = 26684383431552.

The previous prime is 31132402400291. The next prime is 31132402400327. The reversal of 31132402400323 is 32300420423113.

It is a happy number.

It is not a de Polignac number, because 31132402400323 - 2⁵ = 31132402400291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31132402400291 and 31132402400300.

It is not an unprimeable number, because it can be changed into a prime (31132402400327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3855673 + ... + 8782426.

It is an arithmetic number, because the mean of its divisors is an integer number (3017997237150).

Almost surely, 2^{31132402400323} is an apocalyptic number.

31132402400323 is a deficient number, since it is larger than the sum of its proper divisors (5083564445477).

31132402400323 is a wasteful number, since it uses less digits than its factorization.

31132402400323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12688386 (or 12688379 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 31132402400323 its reverse (32300420423113), we get a palindrome (63432822823436).

The spelling of 31132402400323 in words is "thirty-one trillion, one hundred thirty-two billion, four hundred two million, four hundred thousand, three hundred twenty-three".