1290104123 has 32 divisors (see below), whose sum is σ = 1738928640. Its totient is φ = 926588160.

The previous prime is 1290104117. The next prime is 1290104129. The reversal of 1290104123 is 3214010921.

It is an interprime number because it is at equal distance from previous prime (1290104117) and next prime (1290104129).

It is a cyclic number.

It is not a de Polignac number, because 1290104123 - 2¹⁶ = 1290038587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1290104129) 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, 42215 + ... + 66047.

It is an arithmetic number, because the mean of its divisors is an integer number (54341520).

Almost surely, 2^1290104123 is an apocalyptic number.

1290104123 is a deficient number, since it is larger than the sum of its proper divisors (448824517).

1290104123 is a wasteful number, since it uses less digits than its factorization.

1290104123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23907.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1290104123 is about 35918.0194749098. The cubic root of 1290104123 is about 1088.6165212873.

The spelling of 1290104123 in words is "one billion, two hundred ninety million, one hundred four thousand, one hundred twenty-three".