345312155503 has 24 divisors (see below), whose sum is σ = 415671464880. Its totient is φ = 285685868160.

The previous prime is 345312155491. The next prime is 345312155519. The reversal of 345312155503 is 305551213543.

It is not a de Polignac number, because 345312155503 - 2⁹ = 345312154991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345312105503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4696875 + ... + 4769827.

It is an arithmetic number, because the mean of its divisors is an integer number (17319644370).

Almost surely, 2^345312155503 is an apocalyptic number.

345312155503 is a deficient number, since it is larger than the sum of its proper divisors (70359309377).

345312155503 is a wasteful number, since it uses less digits than its factorization.

345312155503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76327 (or 76320 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 37.

The spelling of 345312155503 in words is "three hundred forty-five billion, three hundred twelve million, one hundred fifty-five thousand, five hundred three".