1421120551730 has 64 divisors (see below), whose sum is σ = 2819181770496. Its totient is φ = 511476960000.

The previous prime is 1421120551723. The next prime is 1421120551777. The reversal of 1421120551730 is 371550211241.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21505340 + ... + 21571320.

It is an arithmetic number, because the mean of its divisors is an integer number (44049715164).

Almost surely, 2^{1421120551730} is an apocalyptic number.

1421120551730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1421120551730 is a deficient number, since it is larger than the sum of its proper divisors (1398061218766).

1421120551730 is a wasteful number, since it uses less digits than its factorization.

1421120551730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68003.

The product of its (nonzero) digits is 8400, while the sum is 32.

Adding to 1421120551730 its reverse (371550211241), we get a palindrome (1792670762971).

The spelling of 1421120551730 in words is "one trillion, four hundred twenty-one billion, one hundred twenty million, five hundred fifty-one thousand, seven hundred thirty".