1200030453253 has 8 divisors (see below), whose sum is σ = 1242404775000. Its totient is φ = 1157722395648.

The previous prime is 1200030453239. The next prime is 1200030453289. The reversal of 1200030453253 is 3523540300021.

It can be written as a sum of positive squares in 4 ways, for example, as 225115138369 + 974915314884 = 474463^2 + 987378^2 .

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 1200030453253 - 2⁵ = 1200030453221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200030459253) 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, 16529176 + ... + 16601617.

It is an arithmetic number, because the mean of its divisors is an integer number (155300596875).

Almost surely, 2^{1200030453253} is an apocalyptic number.

It is an amenable number.

1200030453253 is a deficient number, since it is larger than the sum of its proper divisors (42374321747).

1200030453253 is a wasteful number, since it uses less digits than its factorization.

1200030453253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33132071.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 1200030453253 its reverse (3523540300021), we get a palindrome (4723570753274).

The spelling of 1200030453253 in words is "one trillion, two hundred billion, thirty million, four hundred fifty-three thousand, two hundred fifty-three".