1302312101 has 2 divisors, whose sum is σ = 1302312102. Its totient is φ = 1302312100.

The previous prime is 1302312097. The next prime is 1302312103. The reversal of 1302312101 is 1012132031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1211109601 + 91202500 = 34801^2 + 9550^2 .

It is a cyclic number.

It is not a de Polignac number, because 1302312101 - 2² = 1302312097 is a prime.

It is a super-2 number, since 2×1302312101² = 3392033616822068402, which contains 22 as substring.

Together with 1302312103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1302312103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651156050 + 651156051.

It is an arithmetic number, because the mean of its divisors is an integer number (651156051).

Almost surely, 2^1302312101 is an apocalyptic number.

It is an amenable number.

1302312101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302312101 is an equidigital number, since it uses as much as digits as its factorization.

1302312101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1302312101 is about 36087.5615829055. The cubic root of 1302312101 is about 1092.0395282041.

Adding to 1302312101 its reverse (1012132031), we get a palindrome (2314444132).

The spelling of 1302312101 in words is "one billion, three hundred two million, three hundred twelve thousand, one hundred one".