1271237443151 has 16 divisors (see below), whose sum is σ = 1375297002240. Its totient is φ = 1168074915840.

The previous prime is 1271237443097. The next prime is 1271237443171. The reversal of 1271237443151 is 1513447321721.

It is a cyclic number.

It is not a de Polignac number, because 1271237443151 - 2⁶ = 1271237443087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1271237443099 and 1271237443108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271237443171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51940745 + ... + 51965213.

It is an arithmetic number, because the mean of its divisors is an integer number (85956062640).

Almost surely, 2^{1271237443151} is an apocalyptic number.

1271237443151 is a deficient number, since it is larger than the sum of its proper divisors (104059559089).

1271237443151 is a wasteful number, since it uses less digits than its factorization.

1271237443151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42626.

The product of its digits is 141120, while the sum is 41.

The spelling of 1271237443151 in words is "one trillion, two hundred seventy-one billion, two hundred thirty-seven million, four hundred forty-three thousand, one hundred fifty-one".