1131021014550 has 48 divisors (see below), whose sum is σ = 3205636707072. Its totient is φ = 258519088800.

The previous prime is 1131021014549. The next prime is 1131021014587. The reversal of 1131021014550 is 554101201311.

It is a super-2 number, since 2×1131021014550² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1131021014550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 538580386 + ... + 538582485.

It is an arithmetic number, because the mean of its divisors is an integer number (66784098064).

Almost surely, 2^{1131021014550} is an apocalyptic number.

1131021014550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131021014550 is an abundant number, since it is smaller than the sum of its proper divisors (2074615692522).

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

1131021014550 is a wasteful number, since it uses less digits than its factorization.

1131021014550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077162893 (or 1077162888 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

Adding to 1131021014550 its reverse (554101201311), we get a palindrome (1685122215861).

The spelling of 1131021014550 in words is "one trillion, one hundred thirty-one billion, twenty-one million, fourteen thousand, five hundred fifty".