13131040021121 has 32 divisors (see below), whose sum is σ = 15307087656960. Its totient is φ = 11144089756800.

The previous prime is 13131040021103. The next prime is 13131040021133. The reversal of 13131040021121 is 12112004013131.

It is not a de Polignac number, because 13131040021121 - 2²² = 13131035826817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13131040021093 and 13131040021102.

It is not an unprimeable number, because it can be changed into a prime (13131040021321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13554836 + ... + 14491226.

It is an arithmetic number, because the mean of its divisors is an integer number (478346489280).

Almost surely, 2^{13131040021121} is an apocalyptic number.

13131040021121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13131040021121 is a deficient number, since it is larger than the sum of its proper divisors (2176047635839).

13131040021121 is a wasteful number, since it uses less digits than its factorization.

13131040021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937757.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 13131040021121 its reverse (12112004013131), we get a palindrome (25243044034252).

The spelling of 13131040021121 in words is "thirteen trillion, one hundred thirty-one billion, forty million, twenty-one thousand, one hundred twenty-one".