31123101300029 has 2 divisors, whose sum is σ = 31123101300030. Its totient is φ = 31123101300028.

The previous prime is 31123101299999. The next prime is 31123101300043. The reversal of 31123101300029 is 92000310132113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17508492019225 + 13614609280804 = 4184315^2 + 3689798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31123101300029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31123101299980 and 31123101300007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31123101300089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15561550650014 + 15561550650015.

It is an arithmetic number, because the mean of its divisors is an integer number (15561550650015).

Almost surely, 2^{31123101300029} is an apocalyptic number.

It is an amenable number.

31123101300029 is a deficient number, since it is larger than the sum of its proper divisors (1).

31123101300029 is an equidigital number, since it uses as much as digits as its factorization.

31123101300029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 31123101300029 in words is "thirty-one trillion, one hundred twenty-three billion, one hundred one million, three hundred thousand, twenty-nine".