840100031055 has 32 divisors (see below), whose sum is σ = 1504412740800. Its totient is φ = 444782877696.

The previous prime is 840100031047. The next prime is 840100031063. The reversal of 840100031055 is 550130001048.

It is an interprime number because it is at equal distance from previous prime (840100031047) and next prime (840100031063).

It is not a de Polignac number, because 840100031055 - 2³ = 840100031047 is a prime.

It is a super-2 number, since 2×840100031055² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22693050 + ... + 22730039.

It is an arithmetic number, because the mean of its divisors is an integer number (47012898150).

Almost surely, 2^840100031055 is an apocalyptic number.

840100031055 is a deficient number, since it is larger than the sum of its proper divisors (664312709745).

840100031055 is a wasteful number, since it uses less digits than its factorization.

840100031055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45423240 (or 45423234 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 840100031055 in words is "eight hundred forty billion, one hundred million, thirty-one thousand, fifty-five".