213450135511502 has 16 divisors (see below), whose sum is σ = 339010351885440. Its totient is φ = 100446733517568.

The previous prime is 213450135511423. The next prime is 213450135511567. The reversal of 213450135511502 is 205115531054312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3155198 + ... + 20901089.

It is an arithmetic number, because the mean of its divisors is an integer number (21188146992840).

Almost surely, 2^{213450135511502} is an apocalyptic number.

213450135511502 is a deficient number, since it is larger than the sum of its proper divisors (125560216373938).

213450135511502 is a wasteful number, since it uses less digits than its factorization.

213450135511502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24317275.

The product of its (nonzero) digits is 90000, while the sum is 38.

Adding to 213450135511502 its reverse (205115531054312), we get a palindrome (418565666565814).

The spelling of 213450135511502 in words is "two hundred thirteen trillion, four hundred fifty billion, one hundred thirty-five million, five hundred eleven thousand, five hundred two".