1260633111240 has 32 divisors (see below), whose sum is σ = 3781899334080. Its totient is φ = 336168829632.

The previous prime is 1260633111203. The next prime is 1260633111263. The reversal of 1260633111240 is 421113360621.

It is a super-3 number, since 3×1260633111240³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1260633111198 and 1260633111207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5252637844 + ... + 5252638083.

It is an arithmetic number, because the mean of its divisors is an integer number (118184354190).

Almost surely, 2^{1260633111240} is an apocalyptic number.

1260633111240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1260633111240 is an abundant number, since it is smaller than the sum of its proper divisors (2521266222840).

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

1260633111240 is a wasteful number, since it uses less digits than its factorization.

1260633111240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10505275941 (or 10505275937 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 1260633111240 its reverse (421113360621), we get a palindrome (1681746471861).

The spelling of 1260633111240 in words is "one trillion, two hundred sixty billion, six hundred thirty-three million, one hundred eleven thousand, two hundred forty".