1271031430340 has 72 divisors (see below), whose sum is σ = 3135149438400. Its totient is φ = 424004243328.

The previous prime is 1271031430309. The next prime is 1271031430343. The reversal of 1271031430340 is 430341301721.

It is not an unprimeable number, because it can be changed into a prime (1271031430343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3124190 + ... + 3507509.

It is an arithmetic number, because the mean of its divisors is an integer number (43543742200).

Almost surely, 2^{1271031430340} is an apocalyptic number.

1271031430340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1271031430340 is an abundant number, since it is smaller than the sum of its proper divisors (1864118008060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1271031430340 is a wasteful number, since it uses less digits than its factorization.

1271031430340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6631789 (or 6631750 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The spelling of 1271031430340 in words is "one trillion, two hundred seventy-one billion, thirty-one million, four hundred thirty thousand, three hundred forty".