23403520155377 has 2 divisors, whose sum is σ = 23403520155378. Its totient is φ = 23403520155376.

The previous prime is 23403520155373. The next prime is 23403520155469. The reversal of 23403520155377 is 77355102530432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20286727638241 + 3116792517136 = 4504079^2 + 1765444^2 .

It is a cyclic number.

It is not a de Polignac number, because 23403520155377 - 2² = 23403520155373 is a prime.

It is not a weakly prime, because it can be changed into another prime (23403520155371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11701760077688 + 11701760077689.

It is an arithmetic number, because the mean of its divisors is an integer number (11701760077689).

Almost surely, 2^{23403520155377} is an apocalyptic number.

It is an amenable number.

23403520155377 is a deficient number, since it is larger than the sum of its proper divisors (1).

23403520155377 is an equidigital number, since it uses as much as digits as its factorization.

23403520155377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646000, while the sum is 47.

The spelling of 23403520155377 in words is "twenty-three trillion, four hundred three billion, five hundred twenty million, one hundred fifty-five thousand, three hundred seventy-seven".