20513545343150 has 24 divisors (see below), whose sum is σ = 38165175126624. Its totient is φ = 8203271731200.

The previous prime is 20513545343149. The next prime is 20513545343153. The reversal of 20513545343150 is 5134354531502.

It is a junction number, because it is equal to n+sod(n) for n = 20513545343098 and 20513545343107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20513545343153) 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, 53467091 + ... + 53849390.

It is an arithmetic number, because the mean of its divisors is an integer number (1590215630276).

Almost surely, 2^{20513545343150} is an apocalyptic number.

20513545343150 is a deficient number, since it is larger than the sum of its proper divisors (17651629783474).

20513545343150 is a wasteful number, since it uses less digits than its factorization.

20513545343150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107320316 (or 107320311 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 41.

Adding to 20513545343150 its reverse (5134354531502), we get a palindrome (25647899874652).

The spelling of 20513545343150 in words is "twenty trillion, five hundred thirteen billion, five hundred forty-five million, three hundred forty-three thousand, one hundred fifty".