40311243320 has 16 divisors (see below), whose sum is σ = 90700297560. Its totient is φ = 16124497312.

The previous prime is 40311243311. The next prime is 40311243403. The reversal of 40311243320 is 2334211304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503890502 + ... + 503890581.

Almost surely, 2^40311243320 is an apocalyptic number.

40311243320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40311243320 is an abundant number, since it is smaller than the sum of its proper divisors (50389054240).

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

40311243320 is a wasteful number, since it uses less digits than its factorization.

40311243320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007781094 (or 1007781090 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 40311243320 its reverse (2334211304), we get a palindrome (42645454624).

The spelling of 40311243320 in words is "forty billion, three hundred eleven million, two hundred forty-three thousand, three hundred twenty".