1220103031 has 32 divisors (see below), whose sum is σ = 1498176000. Its totient is φ = 970434432.

The previous prime is 1220103023. The next prime is 1220103037. The reversal of 1220103031 is 1303010221.

It is not a de Polignac number, because 1220103031 - 2³ = 1220103023 is a prime.

It is a super-2 number, since 2×1220103031² = 2977302812510773922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220103037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2396805 + ... + 2397313.

It is an arithmetic number, because the mean of its divisors is an integer number (46818000).

Almost surely, 2^1220103031 is an apocalyptic number.

1220103031 is a deficient number, since it is larger than the sum of its proper divisors (278072969).

1220103031 is a wasteful number, since it uses less digits than its factorization.

1220103031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1220103031 is about 34929.9732464827. The cubic root of 1220103031 is about 1068.5598089980.

Adding to 1220103031 its reverse (1303010221), we get a palindrome (2523113252).

The spelling of 1220103031 in words is "one billion, two hundred twenty million, one hundred three thousand, thirty-one".