1011023130212 has 24 divisors (see below), whose sum is σ = 1874413772280. Its totient is φ = 475509588480.

The previous prime is 1011023130209. The next prime is 1011023130277. The reversal of 1011023130212 is 2120313201101.

It can be written as a sum of positive squares in 4 ways, for example, as 785268911716 + 225754218496 = 886154^2 + 475136^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4033739 + ... + 4277042.

It is an arithmetic number, because the mean of its divisors is an integer number (78100573845).

Almost surely, 2^{1011023130212} is an apocalyptic number.

It is an amenable number.

1011023130212 is a deficient number, since it is larger than the sum of its proper divisors (863390642068).

1011023130212 is a wasteful number, since it uses less digits than its factorization.

1011023130212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8312591 (or 8312589 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1011023130212 its reverse (2120313201101), we get a palindrome (3131336331313).

The spelling of 1011023130212 in words is "one trillion, eleven billion, twenty-three million, one hundred thirty thousand, two hundred twelve".