1081349461731 has 72 divisors (see below), whose sum is σ = 1871500141056. Its totient is φ = 543618108000.

The previous prime is 1081349461729. The next prime is 1081349461763. The reversal of 1081349461731 is 1371649431801.

It is not a de Polignac number, because 1081349461731 - 2¹ = 1081349461729 is a prime.

It is a super-2 number, since 2×1081349461731² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1081349461711) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2220486 + ... + 2663316.

Almost surely, 2^{1081349461731} is an apocalyptic number.

1081349461731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1081349461731 is a deficient number, since it is larger than the sum of its proper divisors (790150679325).

1081349461731 is a wasteful number, since it uses less digits than its factorization.

1081349461731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442925 (or 442883 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 1081349461731 in words is "one trillion, eighty-one billion, three hundred forty-nine million, four hundred sixty-one thousand, seven hundred thirty-one".