1081031400 has 96 divisors (see below), whose sum is σ = 3723571200. Its totient is φ = 288273600.

The previous prime is 1081031363. The next prime is 1081031437. The reversal of 1081031400 is 41301801.

It is an interprime number because it is at equal distance from previous prime (1081031363) and next prime (1081031437).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94696 + ... + 105495.

It is an arithmetic number, because the mean of its divisors is an integer number (38787200).

Almost surely, 2^1081031400 is an apocalyptic number.

1081031400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1081031400 is an abundant number, since it is smaller than the sum of its proper divisors (2642539800).

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

1081031400 is a wasteful number, since it uses less digits than its factorization.

1081031400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200216 (or 200201 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1081031400 is about 32879.0419568454. The cubic root of 1081031400 is about 1026.3120694976.

The spelling of 1081031400 in words is "one billion, eighty-one million, thirty-one thousand, four hundred".