31214101 has 2 divisors, whose sum is σ = 31214102. Its totient is φ = 31214100.

The previous prime is 31214081. The next prime is 31214119. The reversal of 31214101 is 10141213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15800625 + 15413476 = 3975^2 + 3926^2 .

It is a cyclic number.

It is not a de Polignac number, because 31214101 - 2⁵ = 31214069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31214171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15607050 + 15607051.

It is an arithmetic number, because the mean of its divisors is an integer number (15607051).

Almost surely, 2^31214101 is an apocalyptic number.

It is an amenable number.

31214101 is a deficient number, since it is larger than the sum of its proper divisors (1).

31214101 is an equidigital number, since it uses as much as digits as its factorization.

31214101 is an evil number, because the sum of its binary digits is even.

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

The square root of 31214101 is about 5586.9581169005. The cubic root of 31214101 is about 314.8596031767.

Adding to 31214101 its reverse (10141213), we get a palindrome (41355314).

The spelling of 31214101 in words is "thirty-one million, two hundred fourteen thousand, one hundred one".