345603946121 has 32 divisors (see below), whose sum is σ = 432418799616. Its totient is φ = 269716392000.

The previous prime is 345603946109. The next prime is 345603946133. The reversal of 345603946121 is 121649306543.

It is an interprime number because it is at equal distance from previous prime (345603946109) and next prime (345603946133).

It is a cyclic number.

It is not a de Polignac number, because 345603946121 - 2¹⁰ = 345603945097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345603946921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 263135 + ... + 872036.

It is an arithmetic number, because the mean of its divisors is an integer number (13513087488).

Almost surely, 2^345603946121 is an apocalyptic number.

345603946121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

345603946121 is a deficient number, since it is larger than the sum of its proper divisors (86814853495).

345603946121 is a wasteful number, since it uses less digits than its factorization.

345603946121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135293.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 345603946121 in words is "three hundred forty-five billion, six hundred three million, nine hundred forty-six thousand, one hundred twenty-one".