21163132051134 has 16 divisors (see below), whose sum is σ = 42386643945360. Its totient is φ = 7044314043200.

The previous prime is 21163132051111. The next prime is 21163132051141. The reversal of 21163132051134 is 43115023136112.

It is a junction number, because it is equal to n+sod(n) for n = 21163132051095 and 21163132051104.

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, 2515822239 + ... + 2515830650.

It is an arithmetic number, because the mean of its divisors is an integer number (2649165246585).

Almost surely, 2^{21163132051134} is an apocalyptic number.

21163132051134 is an abundant number, since it is smaller than the sum of its proper divisors (21223511894226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21163132051134 is a wasteful number, since it uses less digits than its factorization.

21163132051134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031653595.

The product of its (nonzero) digits is 12960, while the sum is 33.

Adding to 21163132051134 its reverse (43115023136112), we get a palindrome (64278155187246).

The spelling of 21163132051134 in words is "twenty-one trillion, one hundred sixty-three billion, one hundred thirty-two million, fifty-one thousand, one hundred thirty-four".