1226031251123 has 16 divisors (see below), whose sum is σ = 1425308037120. Its totient is φ = 1032796348800.

The previous prime is 1226031251119. The next prime is 1226031251129. The reversal of 1226031251123 is 3211521306221.

It is a cyclic number.

It is not a de Polignac number, because 1226031251123 - 2² = 1226031251119 is a prime.

It is a super-2 number, since 2×1226031251123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1226031251129) 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, 1158638 + ... + 1947948.

It is an arithmetic number, because the mean of its divisors is an integer number (89081752320).

Almost surely, 2^{1226031251123} is an apocalyptic number.

1226031251123 is a deficient number, since it is larger than the sum of its proper divisors (199276785997).

1226031251123 is an equidigital number, since it uses as much as digits as its factorization.

1226031251123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793138.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 1226031251123 its reverse (3211521306221), we get a palindrome (4437552557344).

The spelling of 1226031251123 in words is "one trillion, two hundred twenty-six billion, thirty-one million, two hundred fifty-one thousand, one hundred twenty-three".