30211002133031 has 4 divisors (see below), whose sum is σ = 31027515704232. Its totient is φ = 29394488561832.

The previous prime is 30211002133007. The next prime is 30211002133043. The reversal of 30211002133031 is 13033120011203.

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 30211002133031 - 2⁶ = 30211002132967 is a prime.

It is a super-2 number, since 2×30211002133031² (a number of 28 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 = 30211002132994 and 30211002133012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211002103031) 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, 408256785545 + ... + 408256785618.

It is an arithmetic number, because the mean of its divisors is an integer number (7756878926058).

Almost surely, 2^{30211002133031} is an apocalyptic number.

30211002133031 is a deficient number, since it is larger than the sum of its proper divisors (816513571201).

30211002133031 is an equidigital number, since it uses as much as digits as its factorization.

30211002133031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816513571200.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30211002133031 its reverse (13033120011203), we get a palindrome (43244122144234).

The spelling of 30211002133031 in words is "thirty trillion, two hundred eleven billion, two million, one hundred thirty-three thousand, thirty-one".