1302112081 has 2 divisors, whose sum is σ = 1302112082. Its totient is φ = 1302112080.

The previous prime is 1302112069. The next prime is 1302112129. The reversal of 1302112081 is 1802112031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1295352081 + 6760000 = 35991^2 + 2600^2 .

It is a cyclic number.

It is not a de Polignac number, because 1302112081 - 2¹⁵ = 1302079313 is a prime.

It is a super-2 number, since 2×1302112081² = 3390991742972301122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1302112181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651056040 + 651056041.

It is an arithmetic number, because the mean of its divisors is an integer number (651056041).

Almost surely, 2^1302112081 is an apocalyptic number.

It is an amenable number.

1302112081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302112081 is an equidigital number, since it uses as much as digits as its factorization.

1302112081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 1302112081 is about 36084.7901615071. The cubic root of 1302112081 is about 1091.9836171492.

The spelling of 1302112081 in words is "one billion, three hundred two million, one hundred twelve thousand, eighty-one".