11312121623620 has 48 divisors (see below), whose sum is σ = 24801008698368. Its totient is φ = 4325897347200.

The previous prime is 11312121623611. The next prime is 11312121623669. The reversal of 11312121623620 is 2632612121311.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5404839 + ... + 7199758.

It is an arithmetic number, because the mean of its divisors is an integer number (516687681216).

Almost surely, 2^{11312121623620} is an apocalyptic number.

11312121623620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11312121623620 is an abundant number, since it is smaller than the sum of its proper divisors (13488887074748).

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

11312121623620 is a wasteful number, since it uses less digits than its factorization.

11312121623620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12606580 (or 12606578 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

Adding to 11312121623620 its reverse (2632612121311), we get a palindrome (13944733744931).

The spelling of 11312121623620 in words is "eleven trillion, three hundred twelve billion, one hundred twenty-one million, six hundred twenty-three thousand, six hundred twenty".