1201215031 has 2 divisors, whose sum is σ = 1201215032. Its totient is φ = 1201215030.

The previous prime is 1201215013. The next prime is 1201215047. The reversal of 1201215031 is 1305121021.

Together with previous prime (1201215013) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (1201215047) can be obtained adding 1201215031 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201215031 - 2⁹ = 1201214519 is a prime.

It is a super-2 number, since 2×1201215031² = 2885835101400661922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1201214996 and 1201215014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201215091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600607515 + 600607516.

It is an arithmetic number, because the mean of its divisors is an integer number (600607516).

Almost surely, 2^1201215031 is an apocalyptic number.

1201215031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201215031 is an equidigital number, since it uses as much as digits as its factorization.

1201215031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1201215031 is about 34658.5491762134. The cubic root of 1201215031 is about 1063.0171046188.

Adding to 1201215031 its reverse (1305121021), we get a palindrome (2506336052).

The spelling of 1201215031 in words is "one billion, two hundred one million, two hundred fifteen thousand, thirty-one".