1401011121 has 16 divisors (see below), whose sum is σ = 1976693760. Its totient is φ = 880812240.

The previous prime is 1401011107. The next prime is 1401011137. The reversal of 1401011121 is 1211101041.

1401011121 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1401011121 - 2⁹ = 1401010609 is a prime.

It is a super-2 number, since 2×1401011121² = 3925664322331353282, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1401011097 and 1401011106.

It is not an unprimeable number, because it can be changed into a prime (1401011221) 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, 138091 + ... + 147888.

It is an arithmetic number, because the mean of its divisors is an integer number (123543360).

Almost surely, 2^1401011121 is an apocalyptic number.

It is an amenable number.

1401011121 is a deficient number, since it is larger than the sum of its proper divisors (575682639).

1401011121 is a wasteful number, since it uses less digits than its factorization.

1401011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286076.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1401011121 is about 37430.0831016978. The cubic root of 1401011121 is about 1118.9581939098.

Adding to 1401011121 its reverse (1211101041), we get a palindrome (2612112162).

The spelling of 1401011121 in words is "one billion, four hundred one million, eleven thousand, one hundred twenty-one".