31000550230144 has 256 divisors, whose sum is σ = 69641060037120. Its totient is φ = 13737499776000.

The previous prime is 31000550230141. The next prime is 31000550230159. The reversal of 31000550230144 is 44103205500013.

It is a super-2 number, since 2×31000550230144² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31000550230141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4183041799 + ... + 4183049209.

It is an arithmetic number, because the mean of its divisors is an integer number (272035390770).

Almost surely, 2^{31000550230144} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31000550230144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34820530018560).

31000550230144 is an abundant number, since it is smaller than the sum of its proper divisors (38640509806976).

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

31000550230144 is an equidigital number, since it uses as much as digits as its factorization.

31000550230144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8072 (or 8038 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 31000550230144 its reverse (44103205500013), we get a palindrome (75103755730157).

The spelling of 31000550230144 in words is "thirty-one trillion, five hundred fifty million, two hundred thirty thousand, one hundred forty-four".