1401003121 has 8 divisors (see below), whose sum is σ = 1606928960. Its totient is φ = 1196522928.

The previous prime is 1401003083. The next prime is 1401003139. The reversal of 1401003121 is 1213001041.

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

It is a cyclic number.

It is not a de Polignac number, because 1401003121 - 2¹⁵ = 1400970353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1401063121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359331 + ... + 363208.

It is an arithmetic number, because the mean of its divisors is an integer number (200866120).

Almost surely, 2^1401003121 is an apocalyptic number.

It is an amenable number.

1401003121 is a deficient number, since it is larger than the sum of its proper divisors (205925839).

1401003121 is an equidigital number, since it uses as much as digits as its factorization.

1401003121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722823.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1401003121 is about 37429.9762356323. The cubic root of 1401003121 is about 1118.9560640950.

Adding to 1401003121 its reverse (1213001041), we get a palindrome (2614004162).

The spelling of 1401003121 in words is "one billion, four hundred one million, three thousand, one hundred twenty-one".