400121130187 has 2 divisors, whose sum is σ = 400121130188. Its totient is φ = 400121130186.

The previous prime is 400121130181. The next prime is 400121130193. The reversal of 400121130187 is 781031121004.

It is a balanced prime because it is at equal distance from previous prime (400121130181) and next prime (400121130193).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400121130187 is a prime.

It is not a weakly prime, because it can be changed into another prime (400121130181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200060565093 + 200060565094.

It is an arithmetic number, because the mean of its divisors is an integer number (200060565094).

Almost surely, 2^400121130187 is an apocalyptic number.

400121130187 is a deficient number, since it is larger than the sum of its proper divisors (1).

400121130187 is an equidigital number, since it uses as much as digits as its factorization.

400121130187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 28.

The spelling of 400121130187 in words is "four hundred billion, one hundred twenty-one million, one hundred thirty thousand, one hundred eighty-seven".