2105513023154 has 16 divisors (see below), whose sum is σ = 3184276927488. Its totient is φ = 1044093313872.

The previous prime is 2105513023129. The next prime is 2105513023181. The reversal of 2105513023154 is 4513203155012.

It is a self number, because there is not a number n which added to its sum of digits gives 2105513023154.

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, 771404 + ... + 2192279.

It is an arithmetic number, because the mean of its divisors is an integer number (199017307968).

Almost surely, 2^{2105513023154} is an apocalyptic number.

2105513023154 is a deficient number, since it is larger than the sum of its proper divisors (1078763904334).

2105513023154 is a wasteful number, since it uses less digits than its factorization.

2105513023154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2966609.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 2105513023154 its reverse (4513203155012), we get a palindrome (6618716178166).

The spelling of 2105513023154 in words is "two trillion, one hundred five billion, five hundred thirteen million, twenty-three thousand, one hundred fifty-four".