21035155331131 has 8 divisors (see below), whose sum is σ = 21048625634544. Its totient is φ = 21021686931840.

The previous prime is 21035155331123. The next prime is 21035155331213. The reversal of 21035155331131 is 13113355153012.

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 21035155331131 - 2³ = 21035155331123 is a prime.

It is a super-2 number, since 2×21035155331131² (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 (21035155331111) 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, 21963351 + ... + 22901071.

It is an arithmetic number, because the mean of its divisors is an integer number (2631078204318).

Almost surely, 2^{21035155331131} is an apocalyptic number.

21035155331131 is a deficient number, since it is larger than the sum of its proper divisors (13470303413).

21035155331131 is a wasteful number, since it uses less digits than its factorization.

21035155331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952061.

The product of its (nonzero) digits is 20250, while the sum is 34.

The spelling of 21035155331131 in words is "twenty-one trillion, thirty-five billion, one hundred fifty-five million, three hundred thirty-one thousand, one hundred thirty-one".