1523953215223 has 2 divisors, whose sum is σ = 1523953215224. Its totient is φ = 1523953215222.

The previous prime is 1523953215217. The next prime is 1523953215241. The reversal of 1523953215223 is 3225123593251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1523953215223 - 2²¹ = 1523951118071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1523953215223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1523953215263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761976607611 + 761976607612.

It is an arithmetic number, because the mean of its divisors is an integer number (761976607612).

Almost surely, 2^{1523953215223} is an apocalyptic number.

1523953215223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1523953215223 is an equidigital number, since it uses as much as digits as its factorization.

1523953215223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486000, while the sum is 43.

The spelling of 1523953215223 in words is "one trillion, five hundred twenty-three billion, nine hundred fifty-three million, two hundred fifteen thousand, two hundred twenty-three".