155152403135203 has 4 divisors (see below), whose sum is σ = 155158358421808. Its totient is φ = 155146447848600.

The previous prime is 155152403135201. The next prime is 155152403135231. The reversal of 155152403135203 is 302531304251551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155152403135203 - 2¹ = 155152403135201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155152403135201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2977604223 + ... + 2977656328.

It is an arithmetic number, because the mean of its divisors is an integer number (38789589605452).

Almost surely, 2^{155152403135203} is an apocalyptic number.

155152403135203 is a deficient number, since it is larger than the sum of its proper divisors (5955286605).

155152403135203 is an equidigital number, since it uses as much as digits as its factorization.

155152403135203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5955286604.

The product of its (nonzero) digits is 270000, while the sum is 40.

Adding to 155152403135203 its reverse (302531304251551), we get a palindrome (457683707386754).

The spelling of 155152403135203 in words is "one hundred fifty-five trillion, one hundred fifty-two billion, four hundred three million, one hundred thirty-five thousand, two hundred three".