1011250320552 has 64 divisors (see below), whose sum is σ = 2810439312000. Its totient is φ = 336914163072.

The previous prime is 1011250320499. The next prime is 1011250320557. The reversal of 1011250320552 is 2550230521101.

1011250320552 is a `hidden beast` number, since 101 + 1 + 2 + 5 + 0 + 3 + 2 + 0 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1011250320557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 744052 + ... + 1605027.

It is an arithmetic number, because the mean of its divisors is an integer number (43913114250).

Almost surely, 2^{1011250320552} is an apocalyptic number.

1011250320552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011250320552 is an abundant number, since it is smaller than the sum of its proper divisors (1799188991448).

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

1011250320552 is a wasteful number, since it uses less digits than its factorization.

1011250320552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351087 (or 2351077 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 1011250320552 its reverse (2550230521101), we get a palindrome (3561480841653).

The spelling of 1011250320552 in words is "one trillion, eleven billion, two hundred fifty million, three hundred twenty thousand, five hundred fifty-two".