2101520523141 has 12 divisors (see below), whose sum is σ = 3269031925068. Its totient is φ = 1293243398784.

The previous prime is 2101520523139. The next prime is 2101520523181. The reversal of 2101520523141 is 1413250251012.

It is a happy number.

2101520523141 is a `hidden beast` number, since 2 + 101 + 5 + 20 + 523 + 14 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 921427208100 + 1180093315041 = 959910^2 + 1086321^2 .

It is not a de Polignac number, because 2101520523141 - 2¹ = 2101520523139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101520523181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8980856820 + ... + 8980857053.

It is an arithmetic number, because the mean of its divisors is an integer number (272419327089).

Almost surely, 2^{2101520523141} is an apocalyptic number.

It is an amenable number.

2101520523141 is a deficient number, since it is larger than the sum of its proper divisors (1167511401927).

2101520523141 is a wasteful number, since it uses less digits than its factorization.

2101520523141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17961713892 (or 17961713889 counting only the distinct ones).

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

Adding to 2101520523141 its reverse (1413250251012), we get a palindrome (3514770774153).

The spelling of 2101520523141 in words is "two trillion, one hundred one billion, five hundred twenty million, five hundred twenty-three thousand, one hundred forty-one".