1304121042 has 48 divisors (see below), whose sum is σ = 3274756992. Its totient is φ = 367355520.

The previous prime is 1304121037. The next prime is 1304121053. The reversal of 1304121042 is 2401214031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63943 + ... + 81834.

It is an arithmetic number, because the mean of its divisors is an integer number (68224104).

Almost surely, 2^1304121042 is an apocalyptic number.

1304121042 is an abundant number, since it is smaller than the sum of its proper divisors (1970635950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1304121042 is a wasteful number, since it uses less digits than its factorization.

1304121042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145863 (or 145860 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1304121042 is about 36112.6161057324. The cubic root of 1304121042 is about 1092.5449168224.

Adding to 1304121042 its reverse (2401214031), we get a palindrome (3705335073).

The spelling of 1304121042 in words is "one billion, three hundred four million, one hundred twenty-one thousand, forty-two".