40202102387 has 2 divisors, whose sum is σ = 40202102388. Its totient is φ = 40202102386.

The previous prime is 40202102383. The next prime is 40202102389. The reversal of 40202102387 is 78320120204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40202102387 - 2² = 40202102383 is a prime.

Together with 40202102389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40202102383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20101051193 + 20101051194.

It is an arithmetic number, because the mean of its divisors is an integer number (20101051194).

Almost surely, 2^40202102387 is an apocalyptic number.

40202102387 is a deficient number, since it is larger than the sum of its proper divisors (1).

40202102387 is an equidigital number, since it uses as much as digits as its factorization.

40202102387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

The spelling of 40202102387 in words is "forty billion, two hundred two million, one hundred two thousand, three hundred eighty-seven".