1613231101 has 2 divisors, whose sum is σ = 1613231102. Its totient is φ = 1613231100.

The previous prime is 1613231093. The next prime is 1613231183. The reversal of 1613231101 is 1011323161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1536248025 + 76983076 = 39195^2 + 8774^2 .

It is a cyclic number.

It is not a de Polignac number, because 1613231101 - 2³ = 1613231093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1613291101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806615550 + 806615551.

It is an arithmetic number, because the mean of its divisors is an integer number (806615551).

Almost surely, 2^1613231101 is an apocalyptic number.

It is an amenable number.

1613231101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1613231101 is an equidigital number, since it uses as much as digits as its factorization.

1613231101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1613231101 is about 40165.0482509358. The cubic root of 1613231101 is about 1172.8222468404.

Adding to 1613231101 its reverse (1011323161), we get a palindrome (2624554262).

The spelling of 1613231101 in words is "one billion, six hundred thirteen million, two hundred thirty-one thousand, one hundred one".