20011532131 has 8 divisors (see below), whose sum is σ = 20182945328. Its totient is φ = 19840788000.

The previous prime is 20011532129. The next prime is 20011532143. The reversal of 20011532131 is 13123511002.

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 20011532131 - 2¹ = 20011532129 is a prime.

It is a super-2 number, since 2×20011532131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20011532099 and 20011532108.

It is not an unprimeable number, because it can be changed into a prime (20011532111) 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, 107100 + ... + 226921.

It is an arithmetic number, because the mean of its divisors is an integer number (2522868166).

Almost surely, 2^20011532131 is an apocalyptic number.

20011532131 is a deficient number, since it is larger than the sum of its proper divisors (171413197).

20011532131 is a wasteful number, since it uses less digits than its factorization.

20011532131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334533.

The product of its (nonzero) digits is 180, while the sum is 19.

The spelling of 20011532131 in words is "twenty billion, eleven million, five hundred thirty-two thousand, one hundred thirty-one".