1202133123131 has 4 divisors (see below), whose sum is σ = 1205408690592. Its totient is φ = 1198857555672.

The previous prime is 1202133123101. The next prime is 1202133123181. The reversal of 1202133123131 is 1313213312021.

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

It is a cyclic number.

It is not a de Polignac number, because 1202133123131 - 2³⁴ = 1184953253947 is a prime.

It is a super-2 number, since 2×1202133123131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202133123097 and 1202133123106.

It is not an unprimeable number, because it can be changed into a prime (1202133123101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1637783180 + ... + 1637783913.

It is an arithmetic number, because the mean of its divisors is an integer number (301352172648).

Almost surely, 2^{1202133123131} is an apocalyptic number.

1202133123131 is a deficient number, since it is larger than the sum of its proper divisors (3275567461).

1202133123131 is an equidigital number, since it uses as much as digits as its factorization.

1202133123131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275567460.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1202133123131 its reverse (1313213312021), we get a palindrome (2515346435152).

The spelling of 1202133123131 in words is "one trillion, two hundred two billion, one hundred thirty-three million, one hundred twenty-three thousand, one hundred thirty-one".