731141122140 has 384 divisors, whose sum is σ = 2692766039040. Its totient is φ = 162360806400.

The previous prime is 731141122109. The next prime is 731141122193. The reversal of 731141122140 is 41221141137.

It is a happy number.

731141122140 is a `hidden beast` number, since 7 + 31 + 1 + 411 + 2 + 214 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10079682 + ... + 10151958.

It is an arithmetic number, because the mean of its divisors is an integer number (7012411560).

Almost surely, 2^731141122140 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 731141122140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1346383019520).

731141122140 is an abundant number, since it is smaller than the sum of its proper divisors (1961624916900).

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

731141122140 is a wasteful number, since it uses less digits than its factorization.

731141122140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72450 (or 72442 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

Adding to 731141122140 its reverse (41221141137), we get a palindrome (772362263277).

The spelling of 731141122140 in words is "seven hundred thirty-one billion, one hundred forty-one million, one hundred twenty-two thousand, one hundred forty".