1273231016200 has 192 divisors, whose sum is σ = 3597716606400. Its totient is φ = 412640793600.

The previous prime is 1273231016143. The next prime is 1273231016243. The reversal of 1273231016200 is 26101323721.

It is a super-2 number, since 2×1273231016200² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61839 + ... + 1596961.

It is an arithmetic number, because the mean of its divisors is an integer number (18738107325).

Almost surely, 2^{1273231016200} is an apocalyptic number.

1273231016200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1273231016200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1798858303200).

1273231016200 is an abundant number, since it is smaller than the sum of its proper divisors (2324485590200).

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

1273231016200 is a wasteful number, since it uses less digits than its factorization.

1273231016200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535192 (or 1535183 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 1273231016200 its reverse (26101323721), we get a palindrome (1299332339921).

The spelling of 1273231016200 in words is "one trillion, two hundred seventy-three billion, two hundred thirty-one million, sixteen thousand, two hundred".