160121031403 has 4 divisors (see below), whose sum is σ = 160206797080. Its totient is φ = 160035265728.

The previous prime is 160121031397. The next prime is 160121031409. The reversal of 160121031403 is 304130121061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304130121061 = 13 ⋅23394624697.

It is an interprime number because it is at equal distance from previous prime (160121031397) and next prime (160121031409).

It is a cyclic number.

It is not a de Polignac number, because 160121031403 - 2⁹ = 160121030891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160121031409) 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, 42880038 + ... + 42883771.

It is an arithmetic number, because the mean of its divisors is an integer number (40051699270).

Almost surely, 2^160121031403 is an apocalyptic number.

160121031403 is a deficient number, since it is larger than the sum of its proper divisors (85765677).

160121031403 is an equidigital number, since it uses as much as digits as its factorization.

160121031403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85765676.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 160121031403 its reverse (304130121061), we get a palindrome (464251152464).

The spelling of 160121031403 in words is "one hundred sixty billion, one hundred twenty-one million, thirty-one thousand, four hundred three".