2356154635123 has 2 divisors, whose sum is σ = 2356154635124. Its totient is φ = 2356154635122.

The previous prime is 2356154634989. The next prime is 2356154635127. The reversal of 2356154635123 is 3215364516532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2356154635123 - 2¹⁷ = 2356154504051 is a prime.

It is a super-2 number, since 2×2356154635123² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2356154635127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1178077317561 + 1178077317562.

It is an arithmetic number, because the mean of its divisors is an integer number (1178077317562).

Almost surely, 2^{2356154635123} is an apocalyptic number.

2356154635123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2356154635123 is an equidigital number, since it uses as much as digits as its factorization.

2356154635123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944000, while the sum is 46.

The spelling of 2356154635123 in words is "two trillion, three hundred fifty-six billion, one hundred fifty-four million, six hundred thirty-five thousand, one hundred twenty-three".