1020131314155 has 40 divisors (see below), whose sum is σ = 1832190158304. Its totient is φ = 543025641600.

The previous prime is 1020131314121. The next prime is 1020131314199. The reversal of 1020131314155 is 5514131310201.

1020131314155 is a `hidden beast` number, since 1 + 0 + 201 + 313 + 141 + 5 + 5 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1020131314155 is a prime.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2206311 + ... + 2628320.

Almost surely, 2^{1020131314155} is an apocalyptic number.

1020131314155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1020131314155 is a deficient number, since it is larger than the sum of its proper divisors (812058844149).

1020131314155 is an equidigital number, since it uses as much as digits as its factorization.

1020131314155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835169 (or 4835160 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 1020131314155 its reverse (5514131310201), we get a palindrome (6534262624356).

The spelling of 1020131314155 in words is "one trillion, twenty billion, one hundred thirty-one million, three hundred fourteen thousand, one hundred fifty-five".