10213131001505 has 4 divisors (see below), whose sum is σ = 12255757201812. Its totient is φ = 8170504801200.

The previous prime is 10213131001483. The next prime is 10213131001511. The reversal of 10213131001505 is 50510013131201.

10213131001505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1379419713169 + 8833711288336 = 1174487^2 + 2972156^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10213131001505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021313100146 + ... + 1021313100155.

It is an arithmetic number, because the mean of its divisors is an integer number (3063939300453).

Almost surely, 2^{10213131001505} is an apocalyptic number.

It is an amenable number.

10213131001505 is a deficient number, since it is larger than the sum of its proper divisors (2042626200307).

10213131001505 is an equidigital number, since it uses as much as digits as its factorization.

10213131001505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042626200306.

The product of its (nonzero) digits is 450, while the sum is 23.

Adding to 10213131001505 its reverse (50510013131201), we get a palindrome (60723144132706).

The spelling of 10213131001505 in words is "ten trillion, two hundred thirteen billion, one hundred thirty-one million, one thousand, five hundred five".