1031121200002 has 4 divisors (see below), whose sum is σ = 1546681800006. Its totient is φ = 515560600000.

The previous prime is 1031121199991. The next prime is 1031121200023. The reversal of 1031121200002 is 2000021211301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1011189125241 + 19932074761 = 1005579^2 + 141181^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257780299999 + ... + 257780300002.

Almost surely, 2^{1031121200002} is an apocalyptic number.

1031121200002 is a deficient number, since it is larger than the sum of its proper divisors (515560600004).

1031121200002 is an equidigital number, since it uses as much as digits as its factorization.

1031121200002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515560600003.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1031121200002 its reverse (2000021211301), we get a palindrome (3031142411303).

The spelling of 1031121200002 in words is "one trillion, thirty-one billion, one hundred twenty-one million, two hundred thousand, two".