1203012120451 has 8 divisors (see below), whose sum is σ = 1231140343664. Its totient is φ = 1174890769920.

The previous prime is 1203012120449. The next prime is 1203012120463. The reversal of 1203012120451 is 1540212103021.

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 1203012120451 - 2¹ = 1203012120449 is a prime.

It is a super-2 number, since 2×1203012120451² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203012120421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1363146 + ... + 2064991.

It is an arithmetic number, because the mean of its divisors is an integer number (153892542958).

Almost surely, 2^{1203012120451} is an apocalyptic number.

1203012120451 is a deficient number, since it is larger than the sum of its proper divisors (28128223213).

1203012120451 is an equidigital number, since it uses as much as digits as its factorization.

1203012120451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436341.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 1203012120451 its reverse (1540212103021), we get a palindrome (2743224223472).

The spelling of 1203012120451 in words is "one trillion, two hundred three billion, twelve million, one hundred twenty thousand, four hundred fifty-one".