30312211010231 has 32 divisors (see below), whose sum is σ = 32073812144640. Its totient is φ = 28620601027200.

The previous prime is 30312211010203. The next prime is 30312211010233. The reversal of 30312211010231 is 13201011221303.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30312211010231 - 2⁴² = 25914164499127 is a prime.

It is a super-2 number, since 2×30312211010231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312211010233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39871046 + ... + 40624188.

It is an arithmetic number, because the mean of its divisors is an integer number (1002306629520).

Almost surely, 2^{30312211010231} is an apocalyptic number.

30312211010231 is a deficient number, since it is larger than the sum of its proper divisors (1761601134409).

30312211010231 is a wasteful number, since it uses less digits than its factorization.

30312211010231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753527.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 30312211010231 its reverse (13201011221303), we get a palindrome (43513222231534).

The spelling of 30312211010231 in words is "thirty trillion, three hundred twelve billion, two hundred eleven million, ten thousand, two hundred thirty-one".