1201310031 has 16 divisors (see below), whose sum is σ = 1633457664. Its totient is φ = 785045664.

The previous prime is 1201310029. The next prime is 1201310039. The reversal of 1201310031 is 1300131021.

It is not a de Polignac number, because 1201310031 - 2¹ = 1201310029 is a prime.

It is a super-2 number, since 2×1201310031² = 2886291581162441922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1201309989 and 1201310016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201310039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214590 + ... + 220116.

It is an arithmetic number, because the mean of its divisors is an integer number (102091104).

Almost surely, 2^1201310031 is an apocalyptic number.

1201310031 is a deficient number, since it is larger than the sum of its proper divisors (432147633).

1201310031 is a wasteful number, since it uses less digits than its factorization.

1201310031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6950.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1201310031 is about 34659.9196623420. The cubic root of 1201310031 is about 1063.0451273458.

Adding to 1201310031 its reverse (1300131021), we get a palindrome (2501441052).

The spelling of 1201310031 in words is "one billion, two hundred one million, three hundred ten thousand, thirty-one".