31100021041 has 2 divisors, whose sum is σ = 31100021042. Its totient is φ = 31100021040.

The previous prime is 31100021023. The next prime is 31100021053. The reversal of 31100021041 is 14012000113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19633894641 + 11466126400 = 140121^2 + 107080^2 .

It is a cyclic number.

It is not a de Polignac number, because 31100021041 - 2¹³ = 31100012849 is a prime.

It is a super-2 number, since 2×31100021041² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31100091041) 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, 15550010520 + 15550010521.

It is an arithmetic number, because the mean of its divisors is an integer number (15550010521).

Almost surely, 2^31100021041 is an apocalyptic number.

It is an amenable number.

31100021041 is a deficient number, since it is larger than the sum of its proper divisors (1).

31100021041 is an equidigital number, since it uses as much as digits as its factorization.

31100021041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 31100021041 its reverse (14012000113), we get a palindrome (45112021154).

The spelling of 31100021041 in words is "thirty-one billion, one hundred million, twenty-one thousand, forty-one".