31212103133333 has 8 divisors (see below), whose sum is σ = 31640292302400. Its totient is φ = 30783930886368.

The previous prime is 31212103133297. The next prime is 31212103133359. The reversal of 31212103133333 is 33333130121213.

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

It is a cyclic number.

It is not a de Polignac number, because 31212103133333 - 2¹⁴ = 31212103116949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31212103133296 and 31212103133305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31212103133833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493823 + ... + 7916316.

It is an arithmetic number, because the mean of its divisors is an integer number (3955036537800).

Almost surely, 2^{31212103133333} is an apocalyptic number.

It is an amenable number.

31212103133333 is a deficient number, since it is larger than the sum of its proper divisors (428189169067).

31212103133333 is an equidigital number, since it uses as much as digits as its factorization.

31212103133333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8461051.

The product of its (nonzero) digits is 8748, while the sum is 29.

Adding to 31212103133333 its reverse (33333130121213), we get a palindrome (64545233254546).

The spelling of 31212103133333 in words is "thirty-one trillion, two hundred twelve billion, one hundred three million, one hundred thirty-three thousand, three hundred thirty-three".