20121112331002 has 8 divisors (see below), whose sum is σ = 31770177364800. Its totient is φ = 9531053209404.

The previous prime is 20121112330987. The next prime is 20121112331003. The reversal of 20121112331002 is 20013321112102.

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

It is a super-2 number, since 2×20121112331002² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (20121112331003) 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, 264751478002 + ... + 264751478077.

It is an arithmetic number, because the mean of its divisors is an integer number (3971272170600).

Almost surely, 2^{20121112331002} is an apocalyptic number.

20121112331002 is a deficient number, since it is larger than the sum of its proper divisors (11649065033798).

20121112331002 is a wasteful number, since it uses less digits than its factorization.

20121112331002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529502956100.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20121112331002 its reverse (20013321112102), we get a palindrome (40134433443104).

The spelling of 20121112331002 in words is "twenty trillion, one hundred twenty-one billion, one hundred twelve million, three hundred thirty-one thousand, two".