40102311 has 4 divisors (see below), whose sum is σ = 53469752. Its totient is φ = 26734872.

The previous prime is 40102301. The next prime is 40102319. The reversal of 40102311 is 11320104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40102311 - 2¹⁸ = 39840167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40102319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6683716 + ... + 6683721.

It is an arithmetic number, because the mean of its divisors is an integer number (13367438).

Almost surely, 2^40102311 is an apocalyptic number.

40102311 is a deficient number, since it is larger than the sum of its proper divisors (13367441).

40102311 is a wasteful number, since it uses less digits than its factorization.

40102311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13367440.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 40102311 is about 6332.6385496095. The cubic root of 40102311 is about 342.2865233359.

Adding to 40102311 its reverse (11320104), we get a palindrome (51422415).

The spelling of 40102311 in words is "forty million, one hundred two thousand, three hundred eleven".