1002123031002 has 16 divisors (see below), whose sum is σ = 2004616803072. Its totient is φ = 333979220160.

The previous prime is 1002123030959. The next prime is 1002123031003. The reversal of 1002123031002 is 2001303212001.

It is not an unprimeable number, because it can be changed into a prime (1002123031003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15412399 + ... + 15477282.

It is an arithmetic number, because the mean of its divisors is an integer number (125288550192).

Almost surely, 2^{1002123031002} is an apocalyptic number.

1002123031002 is an abundant number, since it is smaller than the sum of its proper divisors (1002493772070).

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

1002123031002 is a wasteful number, since it uses less digits than its factorization.

1002123031002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30895093.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1002123031002 its reverse (2001303212001), we get a palindrome (3003426243003).

The spelling of 1002123031002 in words is "one trillion, two billion, one hundred twenty-three million, thirty-one thousand, two".