40102131241 has 4 divisors (see below), whose sum is σ = 40114917972. Its totient is φ = 40089344512.

The previous prime is 40102131227. The next prime is 40102131257. The reversal of 40102131241 is 14213120104.

40102131241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20278899216 + 19823232025 = 142404^2 + 140795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40102131241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40102161241) 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, 6388660 + ... + 6394933.

It is an arithmetic number, because the mean of its divisors is an integer number (10028729493).

Almost surely, 2^40102131241 is an apocalyptic number.

It is an amenable number.

40102131241 is a deficient number, since it is larger than the sum of its proper divisors (12786731).

40102131241 is a wasteful number, since it uses less digits than its factorization.

40102131241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12786730.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 40102131241 its reverse (14213120104), we get a palindrome (54315251345).

The spelling of 40102131241 in words is "forty billion, one hundred two million, one hundred thirty-one thousand, two hundred forty-one".