40231133431320 has 256 divisors, whose sum is σ = 132204405312000. Its totient is φ = 9733440577536.

The previous prime is 40231133431303. The next prime is 40231133431337. The reversal of 40231133431320 is 2313433113204.

It is an interprime number because it is at equal distance from previous prime (40231133431303) and next prime (40231133431337).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 551006976 + ... + 551079984.

It is an arithmetic number, because the mean of its divisors is an integer number (516423458250).

Almost surely, 2^{40231133431320} is an apocalyptic number.

40231133431320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40231133431320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66102202656000).

40231133431320 is an abundant number, since it is smaller than the sum of its proper divisors (91973271880680).

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

40231133431320 is a wasteful number, since it uses less digits than its factorization.

40231133431320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79082 (or 79078 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 40231133431320 its reverse (2313433113204), we get a palindrome (42544566544524).

The spelling of 40231133431320 in words is "forty trillion, two hundred thirty-one billion, one hundred thirty-three million, four hundred thirty-one thousand, three hundred twenty".