20310123311200 has 72 divisors (see below), whose sum is σ = 49582711581480. Its totient is φ = 8123947238400.

The previous prime is 20310123311143. The next prime is 20310123311287. The reversal of 20310123311200 is 211332101302.

It is a super-2 number, since 2×20310123311200² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121549311 + ... + 121716289.

It is an arithmetic number, because the mean of its divisors is an integer number (688648771965).

Almost surely, 2^{20310123311200} is an apocalyptic number.

20310123311200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20310123311200 is an abundant number, since it is smaller than the sum of its proper divisors (29272588270280).

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

20310123311200 is a wasteful number, since it uses less digits than its factorization.

20310123311200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319040 (or 319027 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20310123311200 its reverse (211332101302), we get a palindrome (20521455412502).

The spelling of 20310123311200 in words is "twenty trillion, three hundred ten billion, one hundred twenty-three million, three hundred eleven thousand, two hundred".