1012130021238 has 32 divisors (see below), whose sum is σ = 2330326485504. Its totient is φ = 287069201472.

The previous prime is 1012130021237. The next prime is 1012130021251. The reversal of 1012130021238 is 8321200312101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012130021237) 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, 87944370 + ... + 87955877.

It is an arithmetic number, because the mean of its divisors is an integer number (72822702672).

Almost surely, 2^{1012130021238} is an apocalyptic number.

1012130021238 is an abundant number, since it is smaller than the sum of its proper divisors (1318196464266).

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

1012130021238 is a wasteful number, since it uses less digits than its factorization.

1012130021238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175900396.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 1012130021238 its reverse (8321200312101), we get a palindrome (9333330333339).

The spelling of 1012130021238 in words is "one trillion, twelve billion, one hundred thirty million, twenty-one thousand, two hundred thirty-eight".