21734602517131 has 8 divisors (see below), whose sum is σ = 24991935586304. Its totient is φ = 18515366911080.

The previous prime is 21734602517081. The next prime is 21734602517167. The reversal of 21734602517131 is 13171520643712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21734602517131 - 2⁹ = 21734602516619 is a prime.

It is a super-2 number, since 2×21734602517131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21734602517171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9524364555 + ... + 9524366836.

It is an arithmetic number, because the mean of its divisors is an integer number (3123991948288).

Almost surely, 2^{21734602517131} is an apocalyptic number.

21734602517131 is a deficient number, since it is larger than the sum of its proper divisors (3257333069173).

21734602517131 is a wasteful number, since it uses less digits than its factorization.

21734602517131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19048731561.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 21734602517131 in words is "twenty-one trillion, seven hundred thirty-four billion, six hundred two million, five hundred seventeen thousand, one hundred thirty-one".