31040231050530 has 384 divisors, whose sum is σ = 89878756391424. Its totient is φ = 7385408409600.

The previous prime is 31040231050489. The next prime is 31040231050531. The reversal of 31040231050530 is 3505013204013.

31040231050530 is a `hidden beast` number, since 3 + 1 + 0 + 4 + 0 + 23 + 105 + 0 + 530 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 31040231050494 and 31040231050503.

It is not an unprimeable number, because it can be changed into a prime (31040231050531) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 962979294 + ... + 963011526.

It is an arithmetic number, because the mean of its divisors is an integer number (234059261436).

Almost surely, 2^{31040231050530} is an apocalyptic number.

31040231050530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31040231050530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44939378195712).

31040231050530 is an abundant number, since it is smaller than the sum of its proper divisors (58838525340894).

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

31040231050530 is a wasteful number, since it uses less digits than its factorization.

31040231050530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32554 (or 32551 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 31040231050530 its reverse (3505013204013), we get a palindrome (34545244254543).

The spelling of 31040231050530 in words is "thirty-one trillion, forty billion, two hundred thirty-one million, fifty thousand, five hundred thirty".