31401101 has 2 divisors, whose sum is σ = 31401102. Its totient is φ = 31401100.

The previous prime is 31401079. The next prime is 31401119. The reversal of 31401101 is 10110413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23755876 + 7645225 = 4874^2 + 2765^2 .

It is a cyclic number.

It is not a de Polignac number, because 31401101 - 2⁶ = 31401037 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31401151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15700550 + 15700551.

It is an arithmetic number, because the mean of its divisors is an integer number (15700551).

Almost surely, 2^31401101 is an apocalyptic number.

It is an amenable number.

31401101 is a deficient number, since it is larger than the sum of its proper divisors (1).

31401101 is an equidigital number, since it uses as much as digits as its factorization.

31401101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 31401101 is about 5603.6685305253. The cubic root of 31401101 is about 315.4871139827.

Adding to 31401101 its reverse (10110413), we get a palindrome (41511514).

The spelling of 31401101 in words is "thirty-one million, four hundred one thousand, one hundred one".