1260121078 has 8 divisors (see below), whose sum is σ = 1989664920. Its totient is φ = 596899440.

The previous prime is 1260121069. The next prime is 1260121117. The reversal of 1260121078 is 8701210621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16580503 + ... + 16580578.

It is an arithmetic number, because the mean of its divisors is an integer number (248708115).

Almost surely, 2^1260121078 is an apocalyptic number.

1260121078 is a deficient number, since it is larger than the sum of its proper divisors (729543842).

1260121078 is a wasteful number, since it uses less digits than its factorization.

1260121078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33161102.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 1260121078 is about 35498.1841507421. The cubic root of 1260121078 is about 1080.1168934976.

Adding to 1260121078 its reverse (8701210621), we get a palindrome (9961331699).

The spelling of 1260121078 in words is "one billion, two hundred sixty million, one hundred twenty-one thousand, seventy-eight".