2102863401 has 12 divisors (see below), whose sum is σ = 3040481028. Its totient is φ = 1400518944.

The previous prime is 2102863387. The next prime is 2102863409. The reversal of 2102863401 is 1043682012.

2102863401 is a `hidden beast` number, since 2 + 1 + 0 + 28 + 634 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 296528400 + 1806335001 = 17220^2 + 42501^2 .

It is not a de Polignac number, because 2102863401 - 2¹¹ = 2102861353 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2102863409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106210 + ... + 124443.

It is an arithmetic number, because the mean of its divisors is an integer number (253373419).

Almost surely, 2^2102863401 is an apocalyptic number.

It is an amenable number.

2102863401 is a deficient number, since it is larger than the sum of its proper divisors (937617627).

2102863401 is a wasteful number, since it uses less digits than its factorization.

2102863401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231672 (or 231669 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2102863401 is about 45856.9885731717. The cubic root of 2102863401 is about 1281.1609342458.

The spelling of 2102863401 in words is "two billion, one hundred two million, eight hundred sixty-three thousand, four hundred one".