2151155601323 has 2 divisors, whose sum is σ = 2151155601324. Its totient is φ = 2151155601322.

The previous prime is 2151155601317. The next prime is 2151155601337. The reversal of 2151155601323 is 3231065511512.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2151155601323 is a prime.

It is a super-2 number, since 2×2151155601323² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2151155631323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075577800661 + 1075577800662.

It is an arithmetic number, because the mean of its divisors is an integer number (1075577800662).

Almost surely, 2^{2151155601323} is an apocalyptic number.

2151155601323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151155601323 is an equidigital number, since it uses as much as digits as its factorization.

2151155601323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 2151155601323 in words is "two trillion, one hundred fifty-one billion, one hundred fifty-five million, six hundred one thousand, three hundred twenty-three".