1401011101243 has 16 divisors (see below), whose sum is σ = 1578917604096. Its totient is φ = 1233448175520.

The previous prime is 1401011101219. The next prime is 1401011101249. The reversal of 1401011101243 is 3421011101041.

It is a cyclic number.

It is not a de Polignac number, because 1401011101243 - 2¹⁷ = 1401010970171 is a prime.

It is a super-2 number, since 2×1401011101243² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1401011101243.

It is not an unprimeable number, because it can be changed into a prime (1401011101249) 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, 6647913 + ... + 6855418.

It is an arithmetic number, because the mean of its divisors is an integer number (98682350256).

Almost surely, 2^{1401011101243} is an apocalyptic number.

1401011101243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1401011101243 is a deficient number, since it is larger than the sum of its proper divisors (177906502853).

1401011101243 is a wasteful number, since it uses less digits than its factorization.

1401011101243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13503714.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1401011101243 its reverse (3421011101041), we get a palindrome (4822022202284).

The spelling of 1401011101243 in words is "one trillion, four hundred one billion, eleven million, one hundred one thousand, two hundred forty-three".