1011620421146 has 4 divisors (see below), whose sum is σ = 1517430631722. Its totient is φ = 505810210572.

The previous prime is 1011620421143. The next prime is 1011620421151. The reversal of 1011620421146 is 6411240261101.

1011620421146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 784267876921 + 227352544225 = 885589^2 + 476815^2 .

It is a super-2 number, since 2×1011620421146² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1011620421143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252905105285 + ... + 252905105288.

Almost surely, 2^{1011620421146} is an apocalyptic number.

1011620421146 is a deficient number, since it is larger than the sum of its proper divisors (505810210576).

1011620421146 is an equidigital number, since it uses as much as digits as its factorization.

1011620421146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505810210575.

The product of its (nonzero) digits is 2304, while the sum is 29.

Adding to 1011620421146 its reverse (6411240261101), we get a palindrome (7422860682247).

The spelling of 1011620421146 in words is "one trillion, eleven billion, six hundred twenty million, four hundred twenty-one thousand, one hundred forty-six".