1218488126131 has 2 divisors, whose sum is σ = 1218488126132. Its totient is φ = 1218488126130.

The previous prime is 1218488126111. The next prime is 1218488126201. The reversal of 1218488126131 is 1316218848121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1218488126131 - 2⁷ = 1218488126003 is a prime.

It is a super-2 number, since 2×1218488126131² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1218488126111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609244063065 + 609244063066.

It is an arithmetic number, because the mean of its divisors is an integer number (609244063066).

Almost surely, 2^{1218488126131} is an apocalyptic number.

1218488126131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1218488126131 is an equidigital number, since it uses as much as digits as its factorization.

1218488126131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 147456, while the sum is 46.

The spelling of 1218488126131 in words is "one trillion, two hundred eighteen billion, four hundred eighty-eight million, one hundred twenty-six thousand, one hundred thirty-one".