131100021110249 has 2 divisors, whose sum is σ = 131100021110250. Its totient is φ = 131100021110248.

The previous prime is 131100021110189. The next prime is 131100021110291. The reversal of 131100021110249 is 942011120001131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115075651838224 + 16024369272025 = 10727332^2 + 4003045^2 .

It is an emirp because it is prime and its reverse (942011120001131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131100021110249 is a prime.

It is a super-2 number, since 2×131100021110249² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131100021110299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65550010555124 + 65550010555125.

It is an arithmetic number, because the mean of its divisors is an integer number (65550010555125).

Almost surely, 2^{131100021110249} is an apocalyptic number.

It is an amenable number.

131100021110249 is a deficient number, since it is larger than the sum of its proper divisors (1).

131100021110249 is an equidigital number, since it uses as much as digits as its factorization.

131100021110249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 131100021110249 in words is "one hundred thirty-one trillion, one hundred billion, twenty-one million, one hundred ten thousand, two hundred forty-nine".