31313200213154 has 8 divisors (see below), whose sum is σ = 46969872081408. Its totient is φ = 15656576186020.

The previous prime is 31313200213153. The next prime is 31313200213157. The reversal of 31313200213154 is 45131200231313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×31313200213154² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31313200213153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10276562 + ... + 12970509.

It is an arithmetic number, because the mean of its divisors is an integer number (5871234010176).

Almost surely, 2^{31313200213154} is an apocalyptic number.

31313200213154 is a deficient number, since it is larger than the sum of its proper divisors (15656671868254).

31313200213154 is a wasteful number, since it uses less digits than its factorization.

31313200213154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23920560.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 31313200213154 its reverse (45131200231313), we get a palindrome (76444400444467).

The spelling of 31313200213154 in words is "thirty-one trillion, three hundred thirteen billion, two hundred million, two hundred thirteen thousand, one hundred fifty-four".