1023154049987 has 2 divisors, whose sum is σ = 1023154049988. Its totient is φ = 1023154049986.

The previous prime is 1023154049977. The next prime is 1023154050011. The reversal of 1023154049987 is 7899404513201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1023154049987 - 2⁴ = 1023154049971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1023154049977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511577024993 + 511577024994.

It is an arithmetic number, because the mean of its divisors is an integer number (511577024994).

Almost surely, 2^{1023154049987} is an apocalyptic number.

1023154049987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023154049987 is an equidigital number, since it uses as much as digits as its factorization.

1023154049987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 1023154049987 in words is "one trillion, twenty-three billion, one hundred fifty-four million, forty-nine thousand, nine hundred eighty-seven".