1031100320149 has 2 divisors, whose sum is σ = 1031100320150. Its totient is φ = 1031100320148.

The previous prime is 1031100320147. The next prime is 1031100320171. The reversal of 1031100320149 is 9410230011301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 716362489924 + 314737830225 = 846382^2 + 561015^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031100320149 - 2¹ = 1031100320147 is a prime.

It is a super-2 number, since 2×1031100320149² (a number of 25 digits) contains 22 as substring.

Together with 1031100320147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031100320147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515550160074 + 515550160075.

It is an arithmetic number, because the mean of its divisors is an integer number (515550160075).

Almost surely, 2^{1031100320149} is an apocalyptic number.

It is an amenable number.

1031100320149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031100320149 is an equidigital number, since it uses as much as digits as its factorization.

1031100320149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 1031100320149 in words is "one trillion, thirty-one billion, one hundred million, three hundred twenty thousand, one hundred forty-nine".